Issue 74, 2023

Synthesis of penta- and hexa(3,4-thienylene): size-dependent structural properties of cyclic oligothiophenes

Abstract

Penta- and hexa(3,4-thienylene)s were synthesized as a potential precursor for thiophene-containing polyarenes, and the structures were determined via X-ray crystallography. The interconversion of thiophene rings is fast in penta(3,4-thienylene), and slow in hexa(3,4-thienylene) reflecting the activation energy for enantiomerization. Size-dependent bathochromic shifts were observed in UV-vis absorption spectra.

Graphical abstract: Synthesis of penta- and hexa(3,4-thienylene): size-dependent structural properties of cyclic oligothiophenes

Supplementary files

Article information

Article type
Communication
Submitted
21 jul 2023
Accepted
23 aug 2023
First published
23 aug 2023
This article is Open Access
Creative Commons BY license

Chem. Commun., 2023,59, 11129-11132

Synthesis of penta- and hexa(3,4-thienylene): size-dependent structural properties of cyclic oligothiophenes

M. Nagase, S. Nakano and Y. Segawa, Chem. Commun., 2023, 59, 11129 DOI: 10.1039/D3CC03508E

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