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Issue 32, 2014
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Optical gap in herringbone and π-stacked crystals of [1]benzothieno[3,2-b]benzothiophene and its brominated derivative

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Abstract

The optical gap of the organic semiconductor [1]benzothieno[3,2-b]benzothiophene and its 2,7-dibrominated analogue is measured in solution and in the crystalline state by means of UV-vis and emission spectroscopy. Bromination leads to a change in molecular packing from herringbone to π-stacked, resulting in a marked shift in the absorption and emission spectra which is found to be in accordance with TDDFT calculations.

Graphical abstract: Optical gap in herringbone and π-stacked crystals of [1]benzothieno[3,2-b]benzothiophene and its brominated derivative

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Article information


Submitted
09 Apr 2014
Accepted
14 May 2014
First published
14 May 2014

This article is Open Access

CrystEngComm, 2014,16, 7389-7392
Article type
Communication

Optical gap in herringbone and π-stacked crystals of [1]benzothieno[3,2-b]benzothiophene and its brominated derivative

V. S. Vyas, R. Gutzler, J. Nuss, K. Kern and B. V. Lotsch, CrystEngComm, 2014, 16, 7389
DOI: 10.1039/C4CE00752B

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