Syntheses and Crystal Structures of Fused Thiophenes: [7]Helicene and Double Helicene, a D2-Symmetric Dimer of 3,3′-Bis(dithieno[2,3-b:3′,2′-d]thiophene)

被引：60

作者：

Li, Chunli ^{[3
]}

Shi, Jianwu ^{[3
]}

Xu, Li ^{[2
]}

Wang, Yangguang ^{[3
]}

Cheng, Yanxiang ^{[1
]}

Wang, Hua ^{[2
,3
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, Changchun 130022, Peoples R China

[2] Henan Univ, Coll Chem & Chem Engn, Kaifeng 475004, Peoples R China

[3] Henan Univ, Key Lab Special Funct Mat, Minist Educ, Kaifeng 475004, Peoples R China

来源：

JOURNAL OF ORGANIC CHEMISTRY | 2009年 / 74卷 / 01期

基金：

美国国家科学基金会;

关键词：

CROSS-CONJUGATED OLIGOTHIOPHENES; FIELD-EFFECT TRANSISTORS; CARBON-SULFUR; ASYMMETRIC-SYNTHESIS; BETA-OLIGOTHIOPHENES; MOLECULES; TETRAPHENYLENES; SEMICONDUCTOR; DERIVATIVES; HELIX;

D O I：

10.1021/jo802080g

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The efficient synthesis of (TMS)(2)-[7]helicene (rac-3) and double helicene, a D-2-symmetric dimer of 3,3'-bis(dithieno-[2,3-b:3',2'-d]thiophene) (rac-4) was developed. The crystal structures of 3 and 4 show both strong intermolecular pi-pi interactions and S center dot center dot center dot S interactions. UV/vis spectra reveal that both 3 and 4 show significant pi-electron delocalization.

引用

页码：408 / 411

页数：4

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