608-72-0Relevant academic research and scientific papers
Collective In-Plane Molecular Rotator Based on Dibromoiodomesitylene π-Stacks
Ichikawa, Jun-Ichi,Hoshino, Norihisa,Takeda, Takashi,Akutagawa, Tomoyuki
, p. 13155 - 13160 (2015)
Interest in artificial solid-state molecular rotator systems is growing as they enable systems to be designed for achieving specific physical functions. The phase transition behavior of four halomesitylene crystals indicated dynamic in-plane molecular rot
Interfacial synthesis of crystalline two-dimensional cyano-graphdiyne
Chen, Siqi,Li, Zhibo,Pan, Qingyan,Shao, Feng,Sun, Qingzhu,Wu, Chenyu,Zhang, Zhaohui,Zhao, Yingjie
supporting information, p. 3210 - 3213 (2020/03/23)
A well-defined crystalline cyano-functionalized graphdiyne (CN-GDY) is synthesized at a liquid/liquid interface through alkyne-alkyne coupling reactions. The configurations and nanostructures of CN-GDY were well characterized by TEM, SEM, AFM, XPS, and Raman spectroscopy. HR-TEM and selected area electron diffraction (SAED) in combination with structure simulation firmly revealed a 9-fold stacking mode for CN-GDY.
2D-Covalent Organic Frameworks with Interlayer Hydrogen Bonding Oriented through Designed Nonplanarity
Alahakoon, Sampath B.,Tan, Kui,Pandey, Haardik,Diwakara, Shashini D.,McCandless, Gregory T.,Grinffiel, Daniel I.,Durand-Silva, Alejandra,Thonhauser, Timo,Smaldone, Ronald A.
supporting information, p. 12987 - 12994 (2020/09/01)
We report the synthesis and characterization of a new class of 2D-covalent organic frameworks, called COFamides, whose layers are held together by amide hydrogen bonds. To accomplish this, we have designed monomers with a nonplanar structure that arises f
A Trefoil Macrocycle Synthesized by 3-Fold Benzannulation
Yang, Xuejin,Yuan, Luyan,Chen, Ziyi,Liu, Zhifeng,Miao, Qian
supporting information, p. 6952 - 6956 (2018/11/02)
A new trefoil-shaped molecular architecture consisting of three conjugated macrocycles was synthesized through an unprecedented 3-fold copper catalyzed [4 + 2] benzannulation. DFT calculations indicate that the most stable conformation of this trefoil macrocycle is D3-symmetric. In agreement with the calculated results, the trefoil macrocycle in single crystals exists as a pair of enantiomers with D3-symmetry and exhibits interesting honeycomb-like supramolecular structures.
Octupolar organometallic Pt(II) NCN-pincer complexes; Synthesis, electronic, photophysical, and NLO properties
Batema, Guido D.,van Walree, Cornelis A.,van Klink, Gerard P.M.,de Mello Donegá, Celso,Meijerink, Andries,Perez-Moreno, Javier,Clays, Koen,van Koten, Gerard
, p. 246 - 252 (2018/02/06)
A series of organometallic octupolar 1,3,5-substituted-2,4,6-styryl-benzene complexes was synthesized by post-modification of parent [PtCl(NCN-CHO-4)], i.e. 1,3,5-tri-R-2,4,6-tris[(4-(PtCl)(3,5-bis[(dimethylamino)methyl]styryl)]benzene (NCN = [C6H2(CH2NMe2)2-2,6]– in which R = OMe, H, Br (1–3). Their synthesis involved a triple Horner-Wadsworth-Emmons reaction of [PtCl(NCN-CHO-4)] with the appropriate tris[(diethoxyphosphoryl)]methyl]benzene derivative. The 195Pt{1H} NMR chemical shift reflects the electronic properties of the π-system to which it is connected. The UV/Vis bands of the octupolar platinum complexes are only slightly red-shifted (by 5–12 nm) with respect to those of corresponding stilbenoid Pt-Cl pincer compounds (i.e., the separate branches), suggesting that there is only a limited electronic interaction between these branches. The fluorescence Stokes shift, quantum yields and lifetimes of 1–3 also are of the same order of magnitude as those of stilbenoid Pt-Cl pincer compounds, indicating that a dipolar excited state is formed, which is localized on one of the three branches. The hyper-Rayleigh scattering technique revealed hyperpolarizabilites βHRS of 430, 870 and 183 × 10?30 esu for 1, 2 and 3, respectively, which are among the highest for transition metal complexes. The highest value was found for the compound lacking a donor or acceptor group at the central core, lending support to the idea that dispersion overwhelms charge transfer in determining the magnitude of the first hyperpolarizability in octupolar compounds.
A microporous hydrogen-bonded organic framework with amine sites for selective recognition of small molecules
Wang, Hailong,Wu, Hui,Kan, Jinglan,Chang, Ganggang,Yao, Zizhu,Li, Bin,Zhou, Wei,Xiang, Shengchang,Cong-Gui Zhao, John,Chen, Banglin
supporting information, p. 8292 - 8296 (2017/07/10)
A three-dimensional hydrogen-bonded organic framework with suitable pore sizes and functional amine groups on the pore surfaces has been realized, exhibiting a highly selective recognition towards pyridine over BTX aromatics. The framework transforms duri
Organic light-emitting diode materials
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Paragraph 0395; 0396, (2017/07/26)
Described herein are molecules for use in organic light emitting diodes. Example molecules comprise at least one acceptor moiety A, at least one donor moiety D, and optionally one or more bridge moieties B. Each moiety A is covalently attached to either the moiety B or the moiety D, each moiety D is covalently attached to either the moiety B or the moiety A, and each moiety B is covalently attached to at least one moiety A and at least one moiety D. Values and preferred values of moieties A, D, and B are defined herein.
Amphiphilic tribranched scaffolds with polyaromatic panels that wrap perylene stacks displaying unusual emissions
Suzuki, Akira,Akita, Munetaka,Yoshizawa, Michito
supporting information, p. 10024 - 10027 (2016/08/15)
A rigid tribranched scaffold with three anthracene panels was synthesized using a stereocontrolled 1,3,5-triphenylbenzene core. Grinding a mixture of the rigid scaffold and perylene leads to the quantitative formation of a spherical assembly containing st
Electrophilic aryl-halogenation using N-halosuccinimides under ball-milling
Bose, Anima,Mal, Prasenjit
supporting information, p. 2154 - 2156 (2015/03/18)
We report here a methodology of chemo- and regio-selective aryl bromination and iodination using respective N-halosuccinimides at room temperature in the absence of any solvents, catalyst/additives under ball-milling condition. However, for chlorination ceric ammonium nitrate was used as additive. The coupled product succinimide, produced from the reactions, was recycled via regeneration of NBS. This methodology works with the electron-donor substituted or unsubstituted arenes.
Electrophilic aryl-halogenation using N-halosuccinimides under ball-milling
Bose, Anima,Mal, Prasenjit
supporting information, p. 2154 - 2156 (2014/04/03)
We report here a methodology of chemo- and regio-selective aryl bromination and iodination using respective N-halosuccinimides at room temperature in the absence of any solvents, catalyst/additives under ball-milling condition. However, for chlorination ceric ammonium nitrate was used as additive. The coupled product succinimide, produced from the reactions, was recycled via regeneration of NBS. This methodology works with the electron-donor substituted or unsubstituted arenes.
