Cambridge Open Engage home
What is Cambridge Open Engage?
How to Submit
Browse
About
News [opens in a new tab]

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

20 July 2023, Version 1
Working Paper
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

Penta- and hexa(3,4-thienylene)s were synthesized via sequential coupling reactions, and the structures were detemined by X-ray crystallography. NMR spectroscopic analysis revealed that 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 shift was observed in UV-vis absorption spectra.

Supplementary materials

Title
Description
Actions
Title
Supporting Information
Description
Experimental section, details of measurements and calculations, and NMR spectra
Actions

Comments

Comments are not moderated before they are posted, but they can be removed by the site moderators if they are found to be in contravention of our Commenting Policy [opens in a new tab] - please read this policy before you post. Comments should be used for scholarly discussion of the content in question. You can find more information about how to use the commenting feature here [opens in a new tab] .
This site is protected by reCAPTCHA and the Google Privacy Policy [opens in a new tab] and Terms of Service [opens in a new tab] apply.

Version History

Jul 20, 2023 Version 1

Metrics

797
458
0
Views
Downloads
Citations

License

CC logo
CC
BY logo
BY
The content is available under CC BY 4.0 [opens in a new tab]

DOI

10.26434/chemrxiv-2023-wc8sl
D O I: 10.26434/chemrxiv-2023-wc8sl [opens in a new tab]

Funding

JST FOREST
JPMJFR211R
JSPS KAKENHI
JP22K19038 and JP22H02068
UBE Foundation
Mitsubishi Foundation
Asahi Glass Foundation

Author’s competing interest statement

The author(s) have declared they have no conflict of interest with regard to this content

Ethics

The author(s) have declared ethics committee/IRB approval is not relevant to this content

Share