Chemical Physics Letters, volume 355, issue 1-2, pages 65-70
Intramolecular excimer and exciplex emission of 1,4-dipyrenyl substituted cyclohexasilane
Cornelis A. van Walree
1
,
Veronica E.M. Kaats-Richters
1
,
Leonardus W. Jenneskens
1
,
Rene Williams
2
,
Publication type: Journal Article
Publication date: 2002-03-01
Journal:
Chemical Physics Letters
scimago Q2
wos Q1
SJR: 0.502
CiteScore: 5.7
Impact factor: 2.8
ISSN: 00092614, 18734448
Physical and Theoretical Chemistry
General Physics and Astronomy
Abstract
Intramolecular excimer emission is observed for cis-1,4-di(1-pyrenyl)decamethylcyclohexasilane in nonpolar solvents. Time-resolved fluorescence spectroscopy and kinetic modelling indicate that the driving force of excimer formation is very small, and that the process is governed by the flexibility of the silicon ring. In the polar solvent acetonitrile, photoinduced electron transfer occurs, with the cyclohexasilane ring acting as electron donor and the pyrenyl group as electron acceptor. 2002 Elsevier Science B.V. All rights reserved.
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