Conformations of 2-phenylethanol and its singly hydrated complexes: UV-UV and IR-UV ion-dip spectroscopy

被引:69
作者
Mons, M
Robertson, EG
Snoek, LC
Simons, JP
机构
[1] Univ Oxford, Phys & Theoret Chem Lab, Oxford OX1 3QZ, England
[2] CEN Saclay, Serv Photons Atomes & Mol, Commissariat Energie Atom, F-91191 Gif Sur Yvette, France
基金
英国工程与自然科学研究理事会;
关键词
D O I
10.1016/S0009-2614(99)00814-3
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The structures of 2-phenylethanol and its 1:1 water complexes have been investigated by UV-UV holeburning and IR-UV ion-dip spectroscopy, coupled with ab initio computation. The most populated molecular conformer is stabilized by an intramolecular pi-type H-bond and its rotational band contours suggest the incidence of vibronic coupling involving motion of the side chain. Its 1:1 water complexes are associated with two distinct structures - water binds either as a proton donor or an acceptor. In the latter, the intramolecular H-bond is disrupted and the water molecule inserts between the OH and the aromatic ring. A second, extended anti conformer can also be detected. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:423 / 432
页数:10
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