A dithienodisilacyclohexadiene (DTDS)-based conjugated model semiconductor: understanding unique features and monitoring structural transition

To enable a superior σ*–π* conjugation, we present a dithienodisilacyclohexadiene (DTS) analogue of DTS(FBTTh 2 ) 2 – namely, DTDS(FBTTh 2 ) 2 – by replacing dithienosilole (DTS) with a dithienodisilacyclohexadiene (DTDS) ring in the main backbone, where DTDS possesses a double silicon-bridged bithi...

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Bibliographic Details
Published inRSC advances Vol. 6; no. 15; pp. 11933 - 11936
Main Authors Cheng, Tao, Chen, Shanshan, Lee, Kyu Cheol, Lee, Sang Myeon, Yang, Changduk
Format Journal Article
LanguageEnglish
Published 2016
Subjects
Absorption
Blue shift
Conjugation
Monitoring
Real time
Semiconductors
Silicon
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Summary:To enable a superior σ*–π* conjugation, we present a dithienodisilacyclohexadiene (DTS) analogue of DTS(FBTTh 2 ) 2 – namely, DTDS(FBTTh 2 ) 2 – by replacing dithienosilole (DTS) with a dithienodisilacyclohexadiene (DTDS) ring in the main backbone, where DTDS possesses a double silicon-bridged bithiophene (Si–Si). With this replacement, a blue shift of the absorption and a high-lying LUMO are observed. Disclosed herein is a structural change of DTDS(FBTTh 2 ) 2 (DTDS to ox-DTDS skeleton as the corresponding oxidation structure) occurring under ambient conditions, which is monitored by real-time 1 H NMR and UV absorption methods. This work not only provides a full understanding of the nature of DTDS, but also uses unique DTDS chemistry as a new toolbox to develop systems as novel functionality materials.
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ISSN:2046-2069
2046-2069
DOI:10.1039/C5RA23514F