Synthesis of π-conjugated oligomers containing dithienosilole units

被引：64

作者：

Kim, DH

Ohshita, J ^{[1
]}

Lee, KH

Kunugi, Y

Kunai, A

机构：

[1] Hiroshima Univ, Grad Sch Engn, Dept Appl Chem, Higashihiroshima 7398527, Japan

[2] Tokai Univ, Fac Engn, Dept Appl Chem, Hiratsuka, Kanagawa 2591292, Japan

来源：

ORGANOMETALLICS | 2006年 / 25卷 / 06期

关键词：

D O I：

10.1021/om0510122

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

pi-Conjugated oligomers having a dithienosilole unit(s) in the backbone were prepared, and their optical properties were examined. Their UV-vis absorption spectra and the emission spectra display maxima at 395-498 nm and at 498-576 nm, respectively, which are at longer wavelength than the oligomers that do not contain silole units with the same pi-conjugated chain length. This clearly demonstrates the influence of silole segments in enhancing the conjugation in the oligomer backbone. The crystal structure of a bi(dithienosilole) derivative was determined by X-ray crystallographic analysis, showing high coplanarity of the two dithienosilole rings. One of the present dithienosilole-containing oligomers was found to be FET active in its vapor-deposited film as well as spin-coated film with a hole mobility of mu = 2.6 x 10(-5) cm(2)/V s and mu = 1.2 x 10(-7) cm(2)/V s, respectively.

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页码：1511 / 1516

页数：6

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