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Synthesis of Tetrasilatetrathia[8]circulenes by a Fourfold Intramolecular Dehydrogenative Silylation of C-H Bonds.

Authors :
Serizawa Y
Akahori S
Kato S
Sakai H
Hasobe T
Miyake Y
Shinokubo H
Source :
Chemistry (Weinheim an der Bergstrasse, Germany) [Chemistry] 2017 May 23; Vol. 23 (29), pp. 6948-6952. Date of Electronic Publication: 2017 Apr 11.
Publication Year :
2017

Abstract

The first two examples of a tetrasilatetrathia[8]circulene were synthesized in two steps from a tetraiodotetrathienylene by using a fourfold intramolecular dehydrogenative silylation of C-H bonds as the key step. A single-crystal X-ray diffraction analysis revealed that tetrasilatetrathia[8]circulene contains a perfectly planar [8]radialene skeleton. The excited-state dynamics of tetrasilatetrathia[8]circulene were evaluated by steady-state and time-resolved spectroscopic measurements, revealing an efficient intersystem crossing in the excited state.<br /> (© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.)

Details

Language :
English
ISSN :
1521-3765
Volume :
23
Issue :
29
Database :
MEDLINE
Journal :
Chemistry (Weinheim an der Bergstrasse, Germany)
Publication Type :
Academic Journal
Accession number :
28370827
Full Text :
https://doi.org/10.1002/chem.201700729