- Donor-acceptor star-shaped conjugated macroelectrolytes: Synthesis, light-harvesting properties, and self-assembly-induced f?rster resonance energy transfer
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A novel series of donor-acceptor star-shaped conjugated macroelectrolytes (CMEs), denoted as 4FTs, including anionic carboxylic acid sodium groups (4FNaT), neutral diethanolamine groups (4FNOHT), and cationic ammonium groups (4FNBrT), were designed, synth
- Zhao, Li,Liu, Cheng-Fang,Xu, Wei-Dong,Jiang, Yi,Lai, Wen-Yong,Huang, Wei
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Read Online
- Enhanced Electron Transfer Reactivity of a Nonheme Iron(IV)-Imido Complex as Compared to the Iron(IV)-Oxo Analogue
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Reactions of N,N-dimethylaniline (DMA) with nonheme iron(IV)-oxo and iron(IV)-tosylimido complexes occur via different mechanisms, such as an N-demethylation of DMA by a nonheme iron(IV)-oxo complex or an electron transfer dimerization of DMA by a nonheme iron(IV)-tosylimido complex. The change in the reaction mechanism results from the greatly enhanced electron transfer reactivity of the iron(IV)-tosylimido complex, such as the much more positive one-electron reduction potential and the smaller reorganization energy during electron transfer, as compared to the electron transfer properties of the corresponding iron(IV)-oxo complex.
- Vardhaman, Anil Kumar,Lee, Yong-Min,Jung, Jieun,Ohkubo, Kei,Nam, Wonwoo,Fukuzumi, Shunichi
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- One-pot synthesis of star-shaped conjugated oligomers based on 3-hexylthiophene, pyrene and triphenylamine as TNT chemosensors
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Star-shaped conjugated oligomer T3HTP containing pyrene, 3-hexylthiophene and triphenylamine, has been successfully synthesized via a simple one-pot sequential direct arylation process. The chemical structure and optical properties of T3HTP oligomer were
- Doan, Bao Kim,Luu, Tam Hoang,Nguyen, Ha Tran,Nguyen, Le-Thu T.,Nguyen, Tam Huu,Nguyen, Vuong Mau,Tran, Tung Viet Tuan,Van, Toai Pham
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- Synthesis and chemosensory properties of triphenylamine-substituted conjugated polyfluorene containing a terminal di(2-picolyl)amine moiety
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This paper describes the synthesis of a triphenylamine-substituted alternating conjugated polyfluorene (PFAD) containing a pendant terminal di(2-picolyl)amine (DPA) group through the Heck coupling reaction. We examined the effect of DPA units on the senso
- Yang, Po-Chih,Wen, Hua-Wen,He, Hsiao-Jou
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p. 101826 - 101833
(2015)
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Read Online
- Photochemical Co-Oxidation of Sulfides and Phosphines with Tris(p-bromophenyl)amine. A Mechanistic Study
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The photochemistry of tris(p-bromophenyl)amine was investigated in a nitrogen- and oxygen-flushed solution under laser flash photolysis conditions. The detected intermediates were the corresponding amine radical cation ("Magic Blue") and the N-phenyl-4a,4b-dihydrocarbazole radical cation that, under an oxygen atmosphere, is converted to the corresponding hydroperoxyl radical. The role of the last species was supported by the smooth co-oxidation of sulfides to sulfoxides. On the other hand, co-oxidation of nucleophilic triarylphosphines to triarylphosphine oxides arose from an electron transfer between the photogenerated "Magic Blue" and phosphine that prevented the amine cyclization. In this case, intermediate Ar3POO?+ was found to play a key role in phosphine oxide formation.
- Bonesi, Sergio M.,Protti, Stefano,Albini, Angelo
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Read Online
- Synthesis and optoelectronic properties of thermally cross-linkable hole-transporting poly(fluorene-co-triphenylamine)
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This paper describes the synthesis of a new thermally cross-linkable hole-transporting poly(fluorene-co-triphenylamine) (PFTV) by Suzuki coupling reaction and its application in polymer light-emitting diodes (PLEDs). The characteristics of PFTV were analy
- Su, Wen-Fen,Chen, Yun
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Read Online
- Minimization of Carrier Losses for Efficient Perovskite Solar Cells through Structural Modification of Triphenylamine Derivatives
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Three hole transport materials (HTMs) based on a substituted triphenylamine moiety have been synthesized and successfully employed in triple-cation mixed-halide PSCs, reaching efficiencies of 19.4 %. The efficiencies, comparable to those obtained using spiro-OMeTAD, point them out as promising candidates for easily attainable and cost-effective alternatives for PSCs, given their facile synthesis from commercially available materials. Interestingly, although all these HTMs show similar chemical and physical properties, they provide different carrier recombination kinetics. Our results demonstrate that is feasible through the molecular design of the HTM to minimize carrier losses and, thus, increase the solar cell efficiencies.
- Méndez, Maria,Nazeeruddin, Mohammad Khaja,Palomares, Emilio Jose,Pudi, Ravi,Rodríguez-Seco, Cristina,Roldán-Carmona, Cristina
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- In situ generated tris(p-bromophenyl)amine radical cation promoted electron transfer reaction of cyclopropyl silyl ethers
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Tris(p-bromophenyl)aminium hexachloroantimonate and perchlorate were utilized to promote the oxidative ring-opening reaction of cyclopropyl silyl ethers giving ring-expanded ketones. Exploration of salt quantity effect on the reaction allowed us to hypoth
- Hasegawa, Eietsu,Kakinuma, Koji,Yanaki, Tomoyo,Komata, Shota
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Read Online
- Efficient single-layer electroluminescent device based on a bipolar emitting boron-containing material
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A novel multifunctional 1,6-bis(2-hydroxyphenyl)pyridine boron bis(4-n-butyl-phenyl)phenyleneamine compound in which the hole-transporting (HT), electron-transporting (ET), and emitting (EM) components are integrated into a single molecule was synthesized
- Zhang, Hongyu,Huo, Cheng,Zhang, Jingying,Zhang, Peng,Tian, Wenjing,Wang, Yue
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Read Online
- Synthetic method of phenylacetonitrile-based aromatic mechanical response fluorescent material
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The invention discloses a synthetic method of a phenylacetonitrile-based aromatic mechanical response fluorescent material, which comprises the following steps: reacting 1 part of brominated intermediate R with 1-4 parts of 4-cyanomethylphenylboronic acid
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Paragraph 0050-0053
(2021/03/13)
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- Pyrene-containing conjugated organic microporous polymers for photocatalytic hydrogen evolution from water
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Photoactive conjugated microporous polymers (CMPs) are emerging as porous materials capable of mediating the photocatalytic evolution of H2from water. In this study, we synthesized three pyrene-based CMPs (Py-F-CMP, Py-TPA-CMP, Py-TPE-CMP) through Sonogashira-Hagihara cross-couplings of 1,3,6,8-tetraethynylpyrene (Py-T, as a common monomer building block) with 2,7-dibromo-9H-fluorene (F-Br2), tris(4-bromophenyl)amine (TPA-Br3), and 1,1,2,2-tetrakis(4-bromophenyl)ethene (TPE-Br4), respectively, in the presence of Pd(PPh3)4in DMF/Et3N. We then characterized the chemical structures, crystallinities, thermal stabilities, surface morphologies, and porosities of these three new CMPs. Brunauer-Emmett-Teller (BET) analyses and tests of photocatalytic H2production revealed that Py-TPA-CMP displayed the highest BET surface area (454 m2g?1), highest total pore volume (0.28 cm3g?1), highest H2evolution rate (19?200 μmol h?1g?1), and highest apparent quantum yield (15.3%) when compared with those of Py-F-CMP, Py-TPE-CMP, and other organic porous materials.
- Mohamed, Mohamed Gamal,Elsayed, Mohamed Hammad,Elewa, Ahmed M.,EL-Mahdy, Ahmed F. M.,Yang, Cheng-Han,Mohammed, Ahmed A. K.,Chou, Ho-Hsiu,Kuo, Shiao-Wei
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p. 2229 - 2241
(2021/04/09)
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- Phosphoric acid delayed-fluorescence material and preparation method thereof
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The invention relates to the technical field of electroluminescence, in particular to a phosphoric acid delayed-fluorescence material and a preparation method thereof. The phosphoric acid delayed-fluorescent material provided by the invention has a structural formula as shown in a formula (I) which is described in the specification. The invention also provides a preparation method of the phosphoric acid delayed-fluorescence material. The preparation method comprises the following step: subjecting a compound as shown in a formula (II) to reacting with a compound as shown in the formula (III) to prepare the compound as shown in the formula (I). The phosphoric acid delayed-fluorescent material and a preparation method thereof provided by the invention solve the technical problems that existing red TADF materials are relatively difficult to synthesize and device efficiency is not high.
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Paragraph 0031-0033
(2021/07/28)
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- Metallated Graphynes as a New Class of Photofunctional 2D Organometallic Nanosheets
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Two-dimensional (2D) nanomaterials are attracting much attention due to their excellent electronic and optical properties. Here, we report the first experimental preparation of two free-standing mercurated graphyne nanosheets via the interface-assisted bottom-up method, which integrates both the advantages of metal center and graphyne. The continuous large-area nanosheets derived from the chemical growth show the layered molecular structural arrangement, controllable thickness and enhanced π-conjugation, which result in their stable and outstanding broadband nonlinear saturable absorption (SA) properties (at both 532 and 1064 nm). The passively Q-switched (PQS) performances of these two nanosheets as the saturable absorbers are comparable to or higher than those of the state-of-the-art 2D nanomaterials (such as graphene, black phosphorus, MoS2, γ-graphyne, etc.). Our results illustrate that the two metallated graphynes could act not only as a new class of 2D carbon-rich materials, but also as inexpensive and easily available optoelectronic materials for device fabrication.
- Huang, Bolong,Li, Jiahua,Sun, Jibin,Sun, Mingzi,Tang, Tianhong,Wang, Zhengping,Wong, Wai-Yeung,Xie, Zheng,Xu, Linli,Zhang, Hongyang,Zhang, Jianqi
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supporting information
p. 11326 - 11334
(2021/04/09)
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- Anthracene-triphenylamine-based platinum(II) metallacages as synthetic light-harvesting assembly
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Two trigonal prismatic metallacages 1 and 2 bearing triphenylamine and anthracene moieties are designed and synthesized to fabricate artificial light-harvesting systems (LHSs). These two cages are prepared via the coordination-driven self-assembly of two
- Li, Yanrong,Rajasree, Sreehari Surendran,Lee, Ga Young,Yu, Jierui,Tang, Jian-Hong,Ni, Ruidong,Li, Guigen,Houk, Kendall N.,Deria, Pravas,Stang, Peter J.
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supporting information
p. 2908 - 2919
(2021/03/01)
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- Multi-Component Metal-Organic Frameworks Significantly Boost Visible-Light-Driven Hydrogen Production Coupled with Selective Organic Oxidation
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Visible-light-driven hydrogen production coupled with selective organic oxidation has attracted increasing attention, as it not only provides clean and renewable energy, but also utilizes the other half reaction to achieve some value-added organic chemicals. Metal-organic frameworks based on metal clusters and organic ligands self-assembly give a perspective on the formation of multifunctional heterogeneous photocatalyst to significantly boost visible-light photocatalytic activities under mild conditions. By incorporating two types of photoactive units, tricarboxytriphenylamine (H3TCA) and tris(4-(pyridinyl)phenyl)amine (NPy3), into a single metal-organic frameworks, a multi-component MOF Co-MIX was obtained. With the redox active metal centers enabling the photoexcitation reduction of protons into hydrogen and the photogenerated holes promoting considerable oxidation of substrates, the resulting Co-MIX exhibits high catalytic activity for the photocatalytic hydrogen production coupled with selective oxidation of benzylamine or 1,2,3,4-tetrahydroisoquinoline. Importantly, the photocatalytic experiments of single-component Co-TCA and Co-NPy3 verified the positive synergistic effects on stability and photocatalytic ability of the two ligands (H3TCA and NPy3) in one single MOF, revealing that the multi-component strategy is very important for the efficient charge separation and excellent photocatalytic activity of the catalyst.
- Duan, Chunying,He, Cheng,Jing, Xu,Li, Hanning,Yang, Yang
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supporting information
p. 1237 - 1244
(2021/04/09)
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- Quantifying the nitrogen effect on CO2 capture using isoporous network polymers
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The impact of nitrogen atoms on CO2 binding was evaluated for two isostructural porous bisimidazole-linked polymers (BILPs), which serendipitously had identical surface areas and pore size distributions, a very rare observation. The two structu
- Nguyen, Thien S.,Yavuz, Cafer T.
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supporting information
p. 4273 - 4275
(2020/04/27)
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- An Efficient Electrochromic Supercapacitor Based on Solution-Processable Nanoporous Poly{tris[4-(3,4-ethylenedioxythiophene)phenyl]amine}
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A new green synthetic route to tris[4-(3,4-ethylenedioxythiophene)phenyl]amine (TEPA) monomer has been developed and the molecular structure of TEPA has been determined by using single-crystal XRD. Solution-processable nanoporous poly{tris[4-(3,4-ethylene
- Lv, Yaokang,Yang, Xing,Du, Weishi,Ma, Peihua,Wang, Hu,Bonnefont, Antoine,Wright, Dominic S.,Ruhlmann, Laurent,Zhang, Cheng
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p. 3844 - 3854
(2020/07/02)
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- Redox Reactivity of a Mononuclear Manganese-Oxo Complex Binding Calcium Ion and Other Redox-Inactive Metal Ions
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Mononuclear nonheme manganese(IV)-oxo complexes binding calcium ion and other redox-inactive metal ions, [(dpaq)MnIV(O)]+-Mn+ (1-Mn+, Mn+ = Ca2+, Mg2+, Zn2+, Lu3+
- Sankaralingam, Muniyandi,Lee, Yong-Min,Pineda-Galvan, Yuliana,Karmalkar, Deepika G.,Seo, Mi Sook,Jeon, So Hyun,Pushkar, Yulia,Fukuzumi, Shunichi,Nam, Wonwoo
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p. 1324 - 1336
(2019/01/30)
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- Diazcarbazole derivative, preparation method thereof, and application of diazcarbazole derivative as electroluminescent material
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The invention belongs to the technical field of organic photoelectric material application, and particularly relates to a diazcarbazole derivative with different relative positions of N atoms and an application of the diazcarbazole derivative as an electroluminescent material. Carbazole-like group diazcarbazole with an electron-deficient property is introduced, and a triplet state of the materialcan be realized and the molecular orbital energy level can be adjustable through bonding with different groups, so that efficient recombination of carriers in an organic electroluminescent device is achieved fundamentally, an efficient and energy-saving organic light emitting diode (OLED) device is obtained, and the diazcarbazole derivative can be widely applied to the field of organic electroluminescence. The structural general formula of the material is as shown in the formula I, wherein a same diazcarbazole (diazcarbazole with N positions of 1,8, 1,7, 1,6, 2,7, 2,6, 2,5, 3,6, 3,5, and 4,5)is taken as a core, the L group is a bridging group for bonding the diazlocarbazole, the L group is selected from aromatic groups or aromatic heterocyclic groups containing heteroatoms, m and n are the numbers of the diazicarbazole, and the sum of m and n is greater than or equal to 1.
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Paragraph 0156; 0157; 0158
(2019/03/26)
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- Chiral Aggregates of Triphenylamine-Based Dyes for Depleting the Production of Hydrogen Peroxide in the Photochemical Water-Splitting Process
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Recent studies on water-splitting photoelectrochemical cells (PECs) have demonstrated the intriguing possibility of controlling the spin state in this chemical reaction to form H2 and O2 by exploiting the chirality of organic π-conju
- Adelizzi, Beatrice,R?sch, Andreas T.,van Rijen, Daan J.,Martire, R. Simone,Esiner, Serkan,Lutz, Martin,Palmans, Anja R. A.,Meijer
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- A new tridentate fluorescent-colorimetric chemosensor for copper(II) ion
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A new tri-imidazolium salt, tris(4-(3-(2-((8-hydroxy-9,10-dioxo-9′,10′-dihydroanthracen-1-yl)oxy)ethyl)-1H-imidazole-3′-ium-1′-yl)phenyl)amine hexafluorophosphate was prepared and characterized. Particularly, the recognition performance of the tri-imidazo
- Zhao, Zhi-Xiang,Hu, Ze-Liang,Zhang, Xian-Tao,Liu, Qing-Xiang
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- A Dual-Stimuli-Responsive Coordination Network Featuring Reversible Wide-Range Luminescence-Tuning Behavior
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We herein report a new coordination network that deforms in a smooth and reversible manner under either thermal or pressure stimulation. Concomitantly, the organic fluorophores coordinatively bound to the channel in a face-to-face arrangement respond to t
- Yao, Zhao-Quan,Xu, Jian,Zou, Bo,Hu, Zhenpeng,Wang, Kai,Yuan, Yi-Jia,Chen, Ya-Ping,Feng, Rui,Xiong, Jian-Bo,Hao, Jialei,Bu, Xian-He
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supporting information
p. 5614 - 5618
(2019/03/27)
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- Dye-sensitized electron transfer from TiO2 to oxidized triphenylamines that follows first-order kinetics
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Two sensitizers, [Ru(bpy)2(dcb)]2+ (RuC) and [Ru(bpy)2(dpb)]2+ (RuP), where bpy is 2,2′-bipyridine, dcb is 4,4′-dicarboxylic acid-2,2′-bipyridine and dpb is 4,4′-diphosphonic acid-2,2′-bipyridine, were anchored to mesoporous TiO2 thin films and utilized to sensitize the reaction of TiO2 electrons with oxidized triphenylamines, TiO2(e-) + TPA+ → TiO2 + TPA, to visible light in CH3CN electrolytes. A family of four symmetrically substituted triphenylamines (TPAs) with formal Eo(TPA+/0) reduction potentials that spanned a 0.5 eV range was investigated. Surprisingly, the reaction followed first-order kinetics for two TPAs that provided the largest thermodynamic driving force. Such first-order reactivity indicates a strong Coulombic interaction between TPA+ and TiO2 that enables the injected electron to tunnel back in one concerted step. The kinetics for the other TPA derivatives were non-exponential and were modelled with the Kohlrausch-William-Watts (KWW) function. A Perrin-like reaction sphere model is proposed to rationalize the kinetic data. The activation energies were the same for all of the TPAs, within experimental error. The average rate constants were found to increase with the thermodynamic driving force, consistent with electron transfer in the Marcus normal region.
- DiMarco, Brian N.,Troian-Gautier, Ludovic,Sampaio, Renato N.,Meyer, Gerald J.
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p. 940 - 949
(2018/02/07)
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- Pyran-annulated perylene diimide derivatives as non-fullerene acceptors for high performance organic solar cells
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There has been growing interest in the effectual strategy of constructing non-fullerene acceptors for organic solar cells that may overcome the defect of traditional fullerene-based acceptors. Herein, two novel push-pull (acceptor-donor-acceptor) type sma
- Li, Gang,Zhang, Yu,Liu, Tao,Wang, Shuaihua,Li, Dandan,Li, Jiewei,Li, Fengting,Yang, Lian-Ming,Luo, Zhenghui,Yang, Chuluo,Yan, He,Hao, Pin,Shang, Qiaoyan,Tang, Bo
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supporting information
p. 11111 - 11117
(2018/11/03)
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- Azacyclo-thioketone compound as well as preparation method and application thereof
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The invention discloses an azacyclo-thioketone compound as well as a preparation method and application thereof. The preparation method comprises the following steps: reacting triphenylamine and liquid bromine in an organic solvent, and reacting the obtai
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Paragraph 0010; 0019
(2018/08/03)
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- Highly Interpenetrated Robust Microporous Hydrogen-Bonded Organic Framework for Gas Separation
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A hydrogen-bonded organic framework (HOF), HOF-11, has been successfully prepared by the slow diffusion of hexane into a tetrahydrofuran solution of tris(4-carboxyphenyl)amine (TCPA). HOF-11 has been characterized by single-crystal and powder X-ray diffra
- Yang, Wei,Wang, Jiawei,Wang, Hailong,Bao, Zongbi,Zhao, John Cong-Gui,Chen, Banglin
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p. 6132 - 6137
(2017/11/07)
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- A 4 - phenyl quinoline compound, preparation method and application thereof (by machine translation)
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The invention discloses a 4 - phenyl quinoline compound, its preparation method and application, the invention of the 4 - phenyl quinoline compound to, its structure (I) shown in the diimmonium: Wherein R1 Is - OH, - Cl, - OCH3 Or -
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Paragraph 0028-0031
(2017/08/31)
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- Silsesquioxane compound, organic light emitting element, display apparatus, image information processing apparatus, and image forming apparatus
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Provided is an organic light emitting element having high light emitting efficiency. The organic light emitting element includes: an anode; a cathode; an emission layer placed between the anode and the cathode; and a hole transport layer formed between th
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Page/Page column 113-115
(2017/09/21)
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- Starlike bipolar small molecular light-emitting material taking triarylated amine group as core and preparation method and application thereof
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The invention discloses a starlike bipolar small molecular light-emitting material taking a triarylated amine group as a core and a preparation method and an application thereof. The starlike bipolar small molecular light-emitting material taking the tria
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Paragraph 0072-0075
(2017/10/31)
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- Topological control of 3,4-connected frameworks based on the Cu2-paddle-wheel node: Tbo or pto, and why?
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Two trigonal tritopic ligands with different conformational degree of freedom: conformationally labile H3tcbpa (tris((4-carboxyl)phenylduryl)amine) and conformationally obstructed H3hmbqa (4,4′,4′′-(4,4,8,8,12,12-hexamethyl-8,12-dihy
- Müller, Philipp,Grünker, Ronny,Bon, Volodymyr,Pfeffermann, Martin,Senkovska, Irena,Weiss, Manfred S.,Feng, Xinliang,Kaskel, Stefan
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p. 8164 - 8171
(2016/11/09)
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- Funnel shaped molecules containing benzo/pyrido[1,2,5]thiadiazole functionalities as peripheral acceptors for organic photovoltaic applications
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A series of four novel funnel shaped triphenylamine core derivatized materials with various combinations of 3,6-di-tert-butyl-9H-carbazole as donors and benzo/pyrido[1,2,5]thiadiazole as peripheral acceptors were designed, synthesized and characterized. O
- Paramasivam, Mahalingavelar,Gupta, Akhil,Babu, N. Jagadeesh,Bhanuprakash,Bhosale, Sheshanath V.,Rao, V. Jayathirtha
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p. 66978 - 66989
(2016/07/30)
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- Synthesis, two-photon absorption and aggregation-induced emission properties of multi-branched triphenylamine derivatives based on diketopyrrolopyrrole for bioimaging
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In this work, three new diketopyrrolopyrrole (DPP)-based multi-branched derivatives (YJ-1, YJ-2 and YJ-3) with triphenylamine, 2,4,6-tri([1,1′-biphenyl]-4-yl)-1,3,5-triazine and 2,2′,2′′-(nitrilotr-is([1,1′-biphenyl]-4′,4-diyl))tris(3-phenylacrylonitrile)
- Yang, Ji,Tan, Haoqi,Li, Dongyu,Jiang, Tao,Gao, Yuting,Li, Bo,Qu, Xue,Hua, Jianli
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p. 58434 - 58442
(2016/07/07)
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- Bromine-containing hole-transporting material and preparation method thereof
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The invention belongs to the technical field of organic electroluminescence display and in particular relates to an efficient bromine-containing hole-transporting material and a preparation method thereof. A structural formula of the hole-transporting mat
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Paragraph 0032; 0035
(2016/10/10)
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- Star-Shaped Single-Polymer Systems with Simultaneous RGB Emission: Design, Synthesis, Saturated White Electroluminescence, and Amplified Spontaneous Emission
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A three-armed star-shaped single-polymer system comprising tris(4-(3-hexyl-5-(7-(4-hexylthiophen-2-yl)benzo[c][1,2,5]thiadiazol-4-yl)thiophen-2-yl)phenyl)amine (TN) as red emissive cores, benzothiadiazole (BT) as green emissive dopants, and polyfluorene (
- Liu, Cheng-Fang,Jiu, Yuanda,Wang, Jianyun,Yi, Jianpeng,Zhang, Xin-Wen,Lai, Wen-Yong,Huang, Wei
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p. 2549 - 2558
(2016/05/10)
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- Bromine-substituted triphenylamine derivatives with improved hole-mobility for highly efficient green phosphorescent OLEDs with a low operating voltage
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Charge transport materials play a crucial role in organic light-emitting diodes (OLEDs) due to their effect on reducing the operating voltage and enhancing the power efficiency. To develop hole transport materials with improved hole-mobility, two novel br
- Du, Xiaoyang,Zhao, Juewen,Liu, Wei,Wang, Kai,Yuan, Shaolin,Zheng, Caijun,Lin, Hui,Tao, Silu,Zhang, Xiao-Hong
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p. 10301 - 10308
(2016/11/17)
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- Synthesis, photophysical, electrochemical, and DSSC application of novel donor-acceptor triazole bridged dendrimers with a triphenylamine core and benzoheterazole as a surface unit
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Triazole bridged novel donor-acceptor dendrimers with triphenylamine as the core and benzoheterazole as the surface unit have been synthesized by click chemistry via a convergent approach. All the dendrimers exhibited excellent optical and electrochemical
- Rajavelu, Kannan,Rajakumar, Perumal,Sudip, Mandal,Kothandaraman, Ramanujam
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p. 10246 - 10258
(2016/12/07)
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- Triphenylamine-based π-conjugated dendrimers: Convenient synthesis, easy solution processability, and good hole-transporting properties
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Two, third-generation triphenylamine-based dendrimers (DT1 and DT2) were prepared through a simple convergent approach by using a combination of versatile carbon-carbon formation reactions. It is found that the π-linkages connecting the periphery into the core have a pronounced effect on the properties of the material. The introduction of CC bonds in the periphery improves the photophysical behavior and optical qualities of the films in comparison with their introduction in the core of the dendrimer. Both dendrimers exhibit high Tgs (above 240 °C) and high-lying HOMO energy levels of ～5.2 eV. As the hole-transporting layer fabricated through a facile solution process, DT2 can endow an Alq3 based multi-layer OLED device with a maximum brightness of 5020 cd m-2, and a maximum current efficiency of 2.36 cd A-1.
- Li, Zhong'An,Ye, Tenglin,Tang, Sun,Wang, Can,Ma, Dongge,Li, Zhen
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supporting information
p. 2016 - 2023
(2015/04/27)
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- C-N cross-coupling reaction catalysed by reusable CuCr2O4 nanoparticles under ligand-free conditions: A highly efficient synthesis of triarylamines
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A convenient, efficient and ligand-free method for the C-N coupling reaction of anilines and aryl iodides was performed using CuCr2O4 nanoparticles. Copper chromite nanocatalyst improved the rate and facility of the synthesis of triarylamines. The heterogeneous catalyst was fully characterized by scanning electron microscopy, IR and X-ray diffraction techniques. Recyclability, excellent yields of products and short reaction times are the important advantages of this ligand-free procedure by using the CuCr2O4 nanoparticles. This journal is
- Safaei-Ghomi, Javad,Akbarzadeh, Zeinab,Khojastehbakht-Koopaei, Bahareh
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p. 28879 - 28884
(2015/04/14)
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- Systematic study of TCTA -based star-shaped host materials by optimizing ratio of carbazole/ diphenylphosphine oxide: Achieving both low efficiency roll-off and turn-on voltage for blue PHOLEDs
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A series of star-shaped host materials DCzPOTA, CzDPOTA and TCTA containing a central triphenylamine (TPA) core, a peripheral modification with different ratios of p-type carbazole units and n-type diphenylphosphine oxide (DPPO) units were purposefully de
- Pan, Biao,Huang, Hong,Yang, Xiao,Jin, Jiangjiang,Zhuang, Shaoqing,Mu, Guangyuan,Wang, Lei
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p. 7428 - 7435
(2014/11/08)
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- A convenient and efficient synthesis of triarylamine derivatives using CuI nanoparticles
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We report a simple and efficient method for the synthesis of triarylamine derivatives using copper iodide nanoparticles, 1,10-phenanthroline and potassium hydroxide. Copper iodide nanoparticles enhanced the rate and ease of reaction and exhibited a high influence in the efficient synthesis of various amine derivatives. The nanoparticles also increased the yields of products and decreased the reaction times in all cases. The heterogeneous mediator was fully characterized by scanning electron microscopy and X-ray diffraction techniques.
- Safaei-Ghomi, Javad,Akbarzadeh, Zeinab,Ziarati, Abolfazl
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p. 16385 - 16390
(2014/05/06)
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- Star-shaped ladder-type ter(p-phenylene)s for efficient multiphoton absorption
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Star-shaped ladder-type ter(p-phenylene)s exhibit remarkably efficient multiphoton absorption properties with 2PA cross-section up to 2579 GM at 700 nm and 3PA cross-section up to 3.35 × 10-76 cm6 s 2 in the femtosecond regime for a blue-emissive molecule despite having such a short π-conjugated framework.
- Guo, Lei,Li, King Fai,Wong, Man Shing,Cheah, Kok Wai
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supporting information
p. 3597 - 3599
(2013/05/09)
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- PROCESS FOR PRODUCTION OF OXIDATION REACTION PRODUCT OF AROMATIC COMPOUND
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The present invention provides a process for producing an oxidation reaction product of an aromatic compound, having excellent environmental load reduction performance, cost reduction performance, etc. Provided is a process for producing an oxidation reaction product of a raw material aromatic compound by reacting the raw material aromatic compound with an oxidizing agent. The process further uses an electron donor-acceptor linked molecule. The process includes the step of: reacting the electron donor-acceptor linked molecule in an electron-transfer state, the oxidizing agent, and the raw material aromatic compound, thereby generating an oxidation reaction product resulting from oxidation of the raw material aromatic compound.
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Page/Page column 19
(2012/07/14)
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- Extended fluorochromism of anthracene trimers with a meta-substituted triphenylamine or triphenylphosphine core
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Combining meta-triphenylamine or triphenylphosphine with three anthracene fluorophores gives rise to fluorescent non-planar triskelions 1 and 2. The emissive properties of 1 are highly solvatochromic, yielding blue to pale green and even pale yellow fluor
- Li, Zhiou,Ishizuka, Hiromi,Sei, Yoshihisa,Akita, Munetaka,Yoshizawa, Michito
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supporting information; experimental part
p. 1789 - 1794
(2012/09/07)
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- Synthesis and applications of novel low bandgap star-burst molecules containing a triphenylamine core and dialkylated diketopyrrolopyrrole arms for organic photovoltaics
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In this study, we used facile synthetic routes to construct two well-defined starburst donor/acceptor conjugated small molecules with broad absorption features; in TPAKP-2 and TPAKP-3, triphenylamine (TPA) moieties served as electron donor core units and dialkylated diketopyrrolopyrrole (DKP) moieties with symmetrical thiophene units served as electron acceptors, in 1:2 and 1:3 ratios, respectively. Our investigation of the photophysical properties indicated that the absorption bands of TPAKP-2, and TPAKP-3 extended up to 793 nm, with low optical band gaps of 1.56 and 1.65 eV respectively. Under illumination with AM 1.5 white light (100 mW cm-2), we investigated the performance of bulk heterojunction (BHJ) photovoltaic devices incorporating an active layer of an electron-donor small molecule (TPAKP-2 or TPAKP-3) blended with an electron acceptor: [6,6]-phenyl-C61-butyric acid methyl ester (PC61BM) or [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) at various weight ratios. The photovoltaic device containing the donor TPAKP-3 and the acceptor PC71BM at a 1:3 weight ratio exhibited the best power conversion efficiency (1.81%), with an open circuit voltage of 0.66 V, a short circuit current density of 7.93 mA cm -2, and a fill factor of 34.7%.
- Sahu, Duryodhan,Tsai, Chia-Hua,Wei, Hung-Yu,Ho, Kuo-Chuan,Chang, Feng-Chih,Chu, Chih-Wei
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experimental part
p. 7945 - 7953
(2012/07/17)
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- Highly efficient deep-blue electroluminescence based on the triphenylamine-cored and peripheral blue emitters with segregative HOMO-LUMO characteristics
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To obtain highly efficient and stable blue electroluminescence, two novel star-shaped compounds are purposefully designed and synthesized, which are composed of two functional groups, central triphenylamine (TPA) and peripheral anthracene (AN) or phenanth
- Tang, Shi,Li, Weijun,Shen, Fangzhong,Liu, Dandan,Yang, Bing,Ma, Yuguang
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experimental part
p. 4401 - 4408
(2012/07/28)
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- High performance aniline vapor detection based on multi-branched fluorescent triphenylamine-benzothiadiazole derivatives: Branch effect and aggregation control of the sensing performance
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A series of benzothiadiazole-pyridine branched triphenylamine derivatives TPA1BP, TPA2BP and TPA3BP have been designed and synthesized to sense aniline vapor with distinguished sensitivity, selectivity and repeatability via photoinduced electron transfer (PET). Suitable energy levels ensure the high selectivity to aniline for all three sensory materials. However, the aggregations of the three materials in the film state on a quartz substrate increase along with the branches, which highly deteriorate the sensing performance for less efficient fluorescence, lower contact area and inferior vapor penetration. The oriented ZnO nanorod array is introduced as the substrate to eliminate the aggregation and enhance the sensing performance, because of its high surface-to-volume ratio and 3D structure. Therefore, the cooperative effect that the sensing performance of TPAnBP increases with the number of branches could be observed; fluorescence intensities of the films on the nano-substrate are 34%, 45% and 54% quenched for TPA1BP, TPA2BP and TPA3BP, respectively, after exposure to 300 ppm aniline vapor for less than 5 s. Moreover, the fluorescences of all three sensory materials are almost 100% recovered by eluting with fresh air for 20 s and could be reused immediately. The detection limits are predicted to be 1 ppm for TPA1BP, 100 ppb for TPA2BP and 1 ppb for TPA3BP according to the fitted plot, demonstrating a significant cooperative effect of the molecular branches.
- Shi, Liqi,He, Chao,Zhu, Defeng,He, Qingguo,Li, Yang,Chen, Yan,Sun, Yuxi,Fu, Yanyan,Wen, Dan,Cao, Huimin,Cheng, Jiangong
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experimental part
p. 11629 - 11635
(2012/08/13)
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- Piezochromic luminescent (PCL) behavior and aggregation-induced emission (AIE) property of a new cationic iridium(iii) complex
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A new cationic Ir(iii) complex based on a dendritic ancillary ligand has been designed and synthesized, which simultaneously exhibits piezochromic luminescent (PCL) behavior and aggregation-induced emission (AIE) property for the first time.
- Shan, Guo-Gang,Li, Hai-Bin,Qin, Jun-Sheng,Zhu, Dong-Xia,Liao, Yi,Su, Zhong-Min
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supporting information; scheme or table
p. 9590 - 9593
(2012/08/28)
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- Platinum-acetylide polymers with higher dimensionality for organic solar cells
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A new series of platinum(II)-acetylide polymers P1-P3 containing thiophene-triarylamine chromophores of different dimensions were synthesized and their electronic band structures, field-effect charge transport, and application in bulk heterojunction solar
- Wang, Qiwei,He, Zhicai,Wild, Andreas,Wu, Hongbin,Cao, Yong,Schubert, Ulrich S.,Chui, Chung-Hin,Wong, Wai-Yeung
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supporting information; experimental part
p. 1766 - 1777
(2011/12/16)
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- Organic light-emitting device
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The present invention provides a heterocyclic compound and an organic light-emitting device including the heterocyclic compound. The organic light-emitting devices using the heterocyclic compounds have high-efficiency, low driving voltage, high luminance and long lifespan.
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Page/Page column 30
(2011/04/18)
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- Multistage complexation of fluoride ions by a fluorescent triphenylamine bearing three dimesitylboryl groups: Controlling intramolecular charge transfer
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A propeller-shaped boron-nitrogen compound (NB3) with three binding sites for fluoride anions was synthesized and investigated by optical absorption, luminescence, and (1H, 11B, 13C, 19F) NMR spectros
- Schmidt, Hauke C.,Reuter, Luisa G.,Hamacek, Josef,Wenger, Oliver S.
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experimental part
p. 9081 - 9085
(2011/12/16)
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- Thermally crosslinkable hole-transporting poly(fluorene-co-triphenylamine) for multilayer polymer light-emitting diodes
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This article reports the synthesis and characterization of a novel thermally crosslinkable hole-transporting poly (fluorene-co-triphenylamine) (PFO-TPA) by Suzuki coupling reaction, followed with its application in the fabrication of multilayer light-emit
- Su, Wen-Fen,Chen, Ruei-Tang,Chen, Yun
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scheme or table
p. 352 - 360
(2012/01/12)
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