Issue 29, 2012
From the journal:

Physical Chemistry Chemical Physics

Spectral multitude and spectral dynamics reflect changing conjugation length in single molecules of oligophenylenevinylenes†

Hiroyuki Kobayashi,a   Kousuke Tsuchiya,b   Kenji Oginob  and  Martin Vacha*a  

* Corresponding authors

a Department of Organic and Polymeric Materials, Tokyo Institute of Technology, Ookayama 2-12-1-S8, Meguro-ku, Tokyo 152-8552, Japan
E-mail: vacha.m.aa@m.titech.ac.jp

b Graduate School of Bio-Applications and System Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan

Abstract

Single-molecule study of phenylenevinylene oligomers revealed distinct spectral forms due to different conjugation lengths which are determined by torsional defects. Large spectral jumps between different spectral forms were ascribed to torsional flips of a single phenylene ring. These spectral changes reflect the dynamic nature of electron delocalization in oligophenylenevinylenes and enable estimation of the phenylene torsional barriers.

Graphical abstract: Spectral multitude and spectral dynamics reflect changing conjugation length in single molecules of oligophenylenevinylenes

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Article information

DOI
https://doi.org/10.1039/C2CP41509G
Article type
Communication
Submitted
11 May 2012
Accepted
01 Jun 2012
First published
22 Jun 2012

Phys. Chem. Chem. Phys., 2012,14, 10114-10118

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Spectral multitude and spectral dynamics reflect changing conjugation length in single molecules of oligophenylenevinylenes

H. Kobayashi, K. Tsuchiya, K. Ogino and M. Vacha, Phys. Chem. Chem. Phys., 2012, 14, 10114 DOI: 10.1039/C2CP41509G

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