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Solvation effects in jet-cooled 7-hydroxyquinoline

✍ Scribed by F. Lahmani; A. Douhal; E. Breheret; A. Zehnacker-Rentien

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
755 KB
Volume
220
Category
Article
ISSN
0009-2614

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✦ Synopsis

An investigation of the laser-induced fluorescence of jet-cooled 'I-hydroxy quinoline and its complexes with water and methanol is presented. The free molecule exhibits two electronic transitions which are due to rotational isomers. The 1: 1 complexes present a moderate red spectral c 500 cm-r shift and a free-molecule-like fluorescence. Higher clusters with Hz0 and CHsOH lead to an unusually large red-shift ( k 2000 cm-') and to a strong modification of the vibrational pattern in excitation and dispersed emission spectra. No excited state tautomerixation was found in these clusters. The structures of the hydrogen-bonded clusters are discussed in the context of these data.

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