INDOLE-H2O IN THE GAS-PHASE - STRUCTURES, BARRIERS TO INTERNAL MOTION, AND S-1[-S-0 TRANSITION-MOMENT ORIENTATION - SOLVENT REORGANIZATION IN THE ELECTRONICALLY EXCITED-STATE

Authors
KORTER TM PRATT DW KUPPER J
Citation
Tm. Korter et al., INDOLE-H2O IN THE GAS-PHASE - STRUCTURES, BARRIERS TO INTERNAL MOTION, AND S-1[-S-0 TRANSITION-MOMENT ORIENTATION - SOLVENT REORGANIZATION IN THE ELECTRONICALLY EXCITED-STATE, The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory, 102(37), 1998, pp. 7211-7216
Citations number
31
Categorie Soggetti
Chemistry Physical
Journal title
The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory → ACNP
ISSN journal
10895639
Volume
102
Issue
37
Year of publication
1998
Pages
7211 - 7216
Database
ISI
SICI code
1089-5639(1998)102:37<7211:IITG-S>2.0.ZU;2-D
Abstract
Rotationally resolved S-1 <-- S-0 fluorescence excitation experiments have been performed on a solute-solvent complex of indole and water in a molecular beam. The results show that the complex whose S-1 <-- S-0 origin is shifted by 132 cm(-1) below the bare molecule origin is a 1 :1 complex, with the water molecule linked to the indole frame via a q uasi-linear N-Hz ... OH2 sigma hydrogen bond. The results also show th at both the position and the orientation of the attached water molecul e change when the photon is absorbed. The properties of the intermolec ular potential-energy surfaces that govern these motions in both elect ronic states are derived from an analysis of the high-resolution spect rum.