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

IVO H. M. VAN STOKKUM ³

Debye Institute, Department of Physical Organic Chemistry Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands. |

Molecular Photonic Materials, Institute of Molecular Chemistry, Faculty of Science, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands |

Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands |

Publication type: Journal Article

Publication date: 2002-03-01

Elsevier

Journal: Chemical Physics Letters

scimago Q2

wos Q1

SJR: 0.502

CiteScore: 5.7

Impact factor: 2.8

ISSN: 00092614, 18734448

DOI: 10.1016/S0009-2614(02)00183-5

Copy DOI

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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