Large molecule relaxation: Spectroscopy, structure, and vibrational energy redistribution in naphthazarin

P. M. Rentzepis, V. E. Bondybey

Publikation: Beitrag in FachzeitschriftArtikelBegutachtung

34 Zitate (Scopus)

Abstract

Analysis of IR and laser induced fluorescence spectra of naphthazarin in rare gas matrices shows clearly that its vibrational potential is characterized by well localized, deep, C2v potential minima. Fluorescence quantum yield in the deuterated molecule is nearly an order of magnitude higher than the H2 and HD isotopic species. Vibrational relaxation in the upper state is remarkably slow and intense unrelaxed emission from a large number of excited vibrational levels is observed. Studies of the unrelaxed emission provide insight into the vibrational relaxation process. Vibrational energy redistribution clearly proceeds via specific pathways and not in a random, statistical manner. The relaxation rates and pathways exhibit only a mild dependence upon temperature and upon the matrix medium.

OriginalspracheEnglisch
Seiten (von - bis)4727-4737
Seitenumfang11
FachzeitschriftJournal of Chemical Physics
Jahrgang80
Ausgabenummer10
DOIs
PublikationsstatusVeröffentlicht - 1984
Extern publiziertJa

Fingerprint

Untersuchen Sie die Forschungsthemen von „Large molecule relaxation: Spectroscopy, structure, and vibrational energy redistribution in naphthazarin“. Zusammen bilden sie einen einzigartigen Fingerprint.

Dieses zitieren