LDA将2,5-二溴噻吩与随后的甲硅烷基化反应按照卤素舞机理在区域上进行区域特异性反应,从而生成3,5-二溴-2-三甲基甲硅烷基噻吩或3,4-二溴-2,5-双(三甲基甲硅烷基)噻吩,具体取决于试剂的比例。该反应的结果通过后一种化合物进一步化学转化为2,5-双(三甲基甲硅烷基)噻吩和2,5-双(三甲基甲硅烷基)噻吩-1,1-二氧化物来证实。在砜的情况下,通过1 H,13 C和29 Si NMR以及X射线分析来确定所获得的化合物的结构。
Regioselective Palladium(0)-Catalyzed Cross-Coupling Reactions and Metal-Halide Exchange Reactions of Tetrabromothiophene: Optimization, Scope and Limitations
metal‐halide exchangereactions of tetrabromothiophene provide a convenient approach to various 2,5‐disubstituted 3,4‐dibromothiophenes. 5‐Alkyl‐2‐trimethylsilyl‐3,4‐dibromothiophenes could be prepared in one pot by sequential addition of trimethylchlorosilane and alkyl bromides. The reaction of tetrabromothiophene with methyl chloroformate and subsequent Suzuki reactions afforded 3,4‐diaryl‐2,5‐bis(metho
Thieno[3,4-<i>c</i>
]pyrrole-4,6-dione-3,4-difluorothiophene Polymer Acceptors for Efficient All-Polymer Bulk Heterojunction Solar Cells
作者:Shengjian Liu、Zhipeng Kan、Simil Thomas、Federico Cruciani、Jean-Luc Brédas、Pierre M. Beaujuge
DOI:10.1002/anie.201604307
日期:2016.10.10
Branched‐alkyl‐substituted poly(thieno[3,4‐c]pyrrole‐4,6‐dione‐alt‐3,4‐difluorothiophene) (PTPD[2F]T) can be used as a polymeracceptor in bulkheterojunction (BHJ) solarcells with a low‐band‐gap polymer donor (PCE10) commonly used with fullerenes. The “all‐polymer” BHJ devices made with PTPD[2F]T achieve efficiencies of up to 4.4 %. While, to date, most efficientpolymeracceptors are based on perylenediimide
支链烷基取代的聚(噻吩并[3,4- c ^ ]吡咯-4,6- dione- ALT -3,4- difluorothiophene)(PTP-D [2F] T)可以用作在本体异质结的聚合物受体(BHJ )具有低带隙聚合物供体(PCE10)的太阳能电池,通常与富勒烯一起使用。用PTPD [2F] T制造的“全聚合物” BHJ设备的效率高达4.4%。尽管迄今为止,最有效的聚合物受体是基于per二酰亚胺或萘二酰亚胺基序的,但我们对PTPD [2F] T聚合物的研究表明,具有充分取代的主链的线性全噻吩体系也可能有益于具有聚合物的高效BHJ太阳电池捐助者。
Isoindigo-3,4-Difluorothiophene Polymer Acceptors Yield “All-Polymer” Bulk-Heterojunction Solar Cells with over 7 % Efficiency
作者:Shengjian Liu、Yuliar Firdaus、Simil Thomas、Zhipeng Kan、Federico Cruciani、Sergei Lopatin、Jean-Luc Bredas、Pierre M. Beaujuge
DOI:10.1002/anie.201709509
日期:2018.1.8
Poly(isoindigo‐alt‐3,4‐difluorothiophene) (PIID[2F]T) analogues used as “polymer acceptors” in bulk‐heterojunction (BHJ) solar cells achieve >7 % efficiency when used in conjunction with the polymer donor PBFTAZ (model system; copolymer of benzo[1,2‐b:4,5‐b′]dithiophene and 5,6‐difluorobenzotriazole). Considering that most efficient polymer‐acceptor alternatives to fullerenes (e.g. PC61BM or its C71 derivative)
聚(isoindigo- ALT -3,4- difluorothiophene)(PIID [2F] T)连同聚合物施主PBFTAZ使用时用作本体异质结“聚合物受体”(BHJ)太阳能电池达到> 7%的效率类似物(模型系统;苯并[1,2- b:4,5- b' ]二噻吩和5,6-二氟苯并三唑的共聚物)。考虑到迄今为止,最有效的富勒烯聚合物受体替代品(例如PC 61 BM或C 71衍生物)是基于on二酰亚胺或萘二酰亚胺基序的,支链烷基取代的PIID [2F] T聚合物特别适合用于“全聚合物” BHJ太阳能电池。
Simple organic donors based on halogenated oligothiophenes for all small molecule solar cells with efficiency over 11%
作者:Tainan Duan、Jie Gao、Tongle Xu、Zhipeng Kan、Wenjing Chen、Ranbir Singh、Gururaj P. Kini、Cheng Zhong、Donghong Yu、Zhengguo Xiao、Zeyun Xiao、Shirong Lu
DOI:10.1039/d0ta00159g
日期:——
Recent work has emphasized the pivotal role of halogen substituents in the development of polymer donors or small-molecule (SM) acceptors for efficientbulk-heterojunction (BHJ) solarcells. However, the application of –F or –Cl substitutions in the design of SM donors is yet to receive similar considerations. In this contribution, we report a set of oligothiophene derivatives (2F7T and 2Cl7T) with
The Efficient Synthesis of Dithieno[3,4-b:3,4-d]thiophene
作者:Li Xu、Zhen Wang、Kun Xu、Jianwu Shi、Hua Wang
DOI:10.2174/157017809789124894
日期:2009.9.1
The efficient synthesis of dithieno[3,4-b:3,4-d]thiophene was improved by the introduction of TMS groups in four synthetic steps including TMS protection, sulfidation, intramolecular cyclization, and TMS removal. The total yield is 55-63% with 3,4-dibromothiophene as starting material. In addition, the crystal structure of (TMS)4-dithieno[3,4-b:3,4- d]thiophene was described.