Online article for Non-subscribers

Pay per view

Heterocycles has a pay-per-view service for Non-subscribers.
You will be able to directly purchase the full text article through PayPal.
Your purchased Paper can be downloaded after the payment is completed.
An e-mail will be sent the URL to download the paper.
If you have any questions, please contact:

Price: ¥ 4,400 (Yen only)
Period: This Article can be accessed for 7 days.

Communication | Special issue | Vol 11, No. 1, 1978, pp.93-99
Published online, 1st January, 1970
DOI: 10.3987/S(N)-1978-01-0093
The Radical Ions of Tetraphenylthieno[3,4-c]thiophene

Peter Fürderer, Fabian Gerson,* Michael P. Cava, and M. V. Lakshmikantham

*Physikalisch-Chemisches Institut der Universität Basel, Kingelbergstrasse 80,4056 Basel, Switzerland


The radical anion and the radical cation of 1,3,4,6-tetraphenylthieno[3,4-c]thiophene have been studied by ESR and ENDO spectroscopy. The coupling constants, aHp aHo»aHm, of the phenyl protons in the para-, ortho- and meta-positions, respectively, suggest an angle θ<40° of twist about the bonds linking the phenyl substituents with the thieno[3,4-c]thiophene moiety.