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Dispersed fluorescence spectroscopic study of the ground electronic state of silver trimer

✍ Scribed by Andrew M. Ellis; Eric S.J. Robles; Terry A. Miller

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
715 KB
Volume
201
Category
Article
ISSN
0009-2614

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✦ Synopsis

Dispersed fluorescence spectra of Ags have been recorded for the first time. The experimental data provide the first clear determination of the fundamental vibrational frequencies of the trimer in its ground electronic state, i.e. v, IZI 180 cm-' and vlz 67 cm-', and also lead to a reassignment of previous Raman work on the molecule. Evidence of significant Jahn-Teller activity in Ag, is clearly demonstrated by the observation ofa progression in the nominally degenerale bending vibrational mode, v2, in both the excitation and dispersed fluorescence spectra. Our observations are consistent with ab initio calculations which have predicted that the triangular 'E' ground electromc state should undergo significant Jahn-Teller distortion.

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