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Structural measurements of perylene clusters with cyclopropane via rotational coherence spectroscopy

โœ Scribed by John R. Stratton; Thomas Troxler; Michael R. Topp

Book ID
103030361
Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
725 KB
Volume
225
Category
Article
ISSN
0009-2614

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โœฆ Synopsis

Rotational coherence experiments using picosecond time-correlated single-photon counting spectroscopy have measured the polarized fluorescence time profiles of van der Waals aggregates of perylene with up to three cyclopropane molecules. Three structural isomers have been confirmed at the 2 : 1 level of aggregation, one of which contains a contacted cyclopropane dimer. The other two are symmetrically distinct isomers of a ( ) species. The 3 : 1 aggregate also exhibits two resolvable structures. The structures of all complexes studied are shown to be generated by the off-center adsorption site of the cyclopropane molecule, evidently dictated by short-range repulsive forces.

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