105309-59-9Relevant academic research and scientific papers
Three-dimensional molecular donors combined with polymeric acceptors for high performance fullerene-free organic photovoltaic devices
Liu, Shi-Yong,Jung, Jae Woong,Li, Chang-Zhi,Huang, Jiang,Zhang, Jianyuan,Chen, Hongzheng,Jen, Alex K.-Y.
, p. 22162 - 22169 (2015)
Non-fullerene acceptor based organic photovoltaic devices (OPVs) reported so far are inferior to those derived from fullerenes. This increases the speculation on whether donors need to be tailored for advancing non-fullerene OPVs. We explored herein two direct arylation-derived diketopyrrolopyrrole (DPP)-based three-dimensional (3D) donors that can deliver respectable power conversion efficiencies (PCEs) of 4.64% and 4.02% with polymeric acceptor N2200 blends, surpassing those obtained from PC71BM (3.56% and 3.22%, respectively). It is found that these 3D-shaped molecular donors can yield improved photo-to-current conversion and balanced charge transport when blending with the linear N2200 polymer. This finding suggests that engineering molecular geometry can be a promising approach for developing high-performance materials.
Fluorinated microporous organic polymers: Design and applications in CO2adsorption and conversion
Yang, Zhen-Zhen,Zhao, Yanfei,Zhang, Hongye,Yu, Bo,Ma, Zhishuang,Ji, Guipeng,Liu, Zhimin
, p. 13910 - 13913 (2014)
Fluorinated microporous organic polymers (F-MOPs) were designed, showing twice higher CO2adsorption capacity than corresponding non-fluorous MOPs. The incorporation of phenanthroline moieties into F-MOPs afforded them the ability to coordinate with Ag(I), and the resultant F-MOP-Ag(I) displayed high efficiency for the reaction of CO2with propargyl alcohols to form a-alkylidene cyclic carbonates at 25°C.
All-Carbon-Linked Continuous Three-Dimensional Porous Aromatic Framework Films with Nanometer-Precise Controllable Thickness
B?rjesson, Karl,Evans, Austin M.,Ratsch, Martin,Yang, Yizhou,Ye, Chen,Zhang, Airui
, p. 6548 - 6553 (2020)
Inherently porous materials that are chemically and structurally robust are challenging to construct. Conventionally, dynamic chemistry is thought to be needed for the formation of uniform porous organic frameworks, but dynamic bonds can limit the stability of these materials. For this reason, all-carbon-linked frameworks are expected to exhibit higher stability performance than more traditional porous frameworks. However, the limited reversibility of carbon-carbon bond-forming reactions has restricted the exploration of these materials. In particular, the challenges associated with producing uniform thin films of all-carbon-linked frameworks has inhibited the study of these materials in applications where well-defined films are required. Here, we synthesize continuous and homogeneous films of two different all-carbon-linked three-dimensional porous aromatic frameworks with nanometer-precision thickness (PAF-1 and BCMP-2). This was accomplished by kinetically promoting surface reactivity while suppressing homogeneous nucleation. Through connection of the PAF film to a gold substrate via a self-assembled monolayer and use of flow conditions to continually introduce monomers, smooth and continuous PAF films can be grown with controlled thickness. This strategy allows traditional transition metal mediated carbon-carbon cross-coupling reactions to form porous, organic thin films. We expect that the chemical principles uncovered in this study will enable the synthesis of a variety of chemically and structurally diverse carbon-carbon-linked frameworks as high-quality films, which are inaccessible by conventional methods.
Metalation of a Mesoporous Three-Dimensional Covalent Organic Framework
Baldwin, Luke A.,Crowe, Jonathan W.,Pyles, David A.,McGrier, Psaras L.
, p. 15134 - 15137 (2016)
Constructing metalated three-dimensional (3D) covalent organic frameworks is a challenging synthetic task. Herein, we report the synthesis and characterization of a highly porous (SABET = 5083 m2 g-1) 3D COF with a record low density (0.13 g cm-3) containing π-electron conjugated dehydrobenzoannulene (DBA) units. Metalation of DBA-3D-COF 1 with Ni to produce Ni-DBA-3D-COF results in a minimal reduction in the surface area (SABET = 4763 m2 g-1) of the material due to the incorporation of the metal within the cavity of the DBA units, and retention of crystallinity. Both 3D DBA-COFs also display great uptake capacities for ethane and ethylene gas.
Thiazolothiazole-linked porous organic polymers
Zhu, Xiang,Tian, Chengcheng,Jin, Tian,Wang, Jitong,Mahurin, Shannon M.,Mei, Wenwen,Xiong, Yan,Hu, Jun,Feng, Xinliang,Liu, Honglai,Dai, Sheng
, p. 15055 - 15058 (2014)
Thiazolothiazole-linked porous organic polymers have been synthesized from a facile catalyst-free condensation reaction between aldehydes and dithiooxamide under solvothermal conditions. The resultant porous frameworks exhibit a highly selective uptake of CO2 over N2 under ambient conditions. This journal is
Microporous polymer network films covalently bound to gold electrodes
Becker, Daniel,Heidary, Nina,Horch, Marius,Gernert, Ulrich,Zebger, Ingo,Schmidt, Johannes,Fischer, Anna,Thomas, Arne
, p. 4283 - 4286 (2015)
Covalent attachment of a microporous polymer network (MPN) on a gold surface is presented. A functional bromophenyl-based self-assembled monolayer (SAM) formed on the gold surface acts as co-monomer in the polymerisation of the MPN yielding homogeneous and robust coatings. Covalent binding of the films to the electrode is confirmed by SEIRAS measurements.
Luminescent infinite coordination polymer materials from metal-terpyridine ligation
Eryazici, Ibrahim,Farha, Omar K.,Compton, Owen C.,Stern, Charlotte,Hupp, Joseph T.,Nguyen, Sonbinh T.
, p. 9189 - 9193 (2011)
A new class of infinite coordination polymers (CP) was synthesized using a tetrahedral tetrakis[4-(4′-phenyl-2,2′:6′,2′′- terpyridine)phenyl]methane ligand as an organic node to direct the three-dimensional growth of the network and MII (M = Zn, Fe, Ni, and Ru) ions as inorganic linkers, an approach that is the opposite of the metal-as-a-node strategy used in the construction of metal-organic frameworks (MOFs). The unusual rod-like morphology of the resulting microporous materials can be tuned via solvents and reaction conditions. The covalent entrapment of a [Ru(tpy)2]2+ moiety in the skeleton of the 3D-network enables the Ru-CP to exhibit room-temperature luminescence.
A microporous hydrogen-bonded organic framework for highly selective C 2H2/C2H4 separation at ambient temperature
He, Yabing,Xiang, Shengchang,Chen, Banglin
, p. 14570 - 14573 (2011)
The first microporous hydrogen-bonded organic framework with permanent porosity and exhibiting extraordinarily highly selective adsorptive separation of C2H2 and C2H4 at ambient temperature has been established.
Synthesis and fine-tuning the pore properties of a thiophene based porous organic framework by post-oxidation treatment
Liu, Yanze,Zuo, Yiming,Li, Shuai,Li, Jiani,Li, Li,Liu, Caixia,Ashraf, Shumalia,Li, Pengfei,Wang, Bo
, p. 21953 - 21958 (2019)
Porous organic frameworks (POFs) are an important class of materials, which have attracted great interests in recent years. The post modification of porous organic frameworks provides an efficient way to fine tune the properties of POFs for specific applications. However, most of the post functionalization methods need harsh reaction conditions and specific reagents and lead to a notable pore width decrease, which hinder the pore accessibility. Herein, we designed and synthesized a thiophene based POF with high surface area and stability. A straightforward post-oxidation of thiophene based POFs by meta-chloroperbenzoic acid introduced sulfone groups as hydrogen bonding sites in the channel with a less effected pore width in a controllable manner. The hydrogen bond acceptor sulfone groups could promote the adsorption of ammonia and enhance the proton conductivity of phosphoric acid or imidazole infiltrated POFs. The proton conductivity of phosphoric acid doped oxidized thiophene based POFs is over 10-3 S cm-1 at 120 °C under anhydrous conditions, which could be a promising candidate for fuel cells.
Robust C-C bonded porous networks with chemically designed functionalities for improved CO2 capture from flue gas
Thirion, Damien,Lee, Joo S.,?zdemir, Ercan,Yavuz, Cafer T.
, p. 2274 - 2279 (2016)
Effective carbon dioxide (CO2) capture requires solid, porous sorbents with chemically and thermally stable frameworks. Herein, we report two new carbon-carbon bonded porous networks that were synthesized through metal-free Knoevenagel nitrile-aldol condensation, namely the covalent organic polymer, COP-156 and 157. COP-156, due to high specific surface area (650 m2/g) and easily interchangeable nitrile groups, was modified post-synthetically into free amine- or amidoxime-containing networks. The modified COP-156-amine showed fast and increased CO2 uptake under simulated moist flue gas conditions compared to the starting network and usual industrial CO2 solvents, reaching up to 7.8 wt % uptake at 40°C.
