Vibrational spectroscopy of the F-•H2O complex via argon predissociation:: photoinduced, intracluster proton transfer?

被引：66

作者：

Ayotte, P ^{[1
]}

Kelley, JA ^{[1
]}

Nielsen, SB ^{[1
]}

Johnson, MA ^{[1
]}

机构：

[1] Yale Univ, Sterling Chem Lab, New Haven, CT 06520 USA

来源：

CHEMICAL PHYSICS LETTERS | 2000年 / 316卷 / 5-6期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0009-2614(99)01257-9

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 mid-IR vibrational spectrum of the strongly bound F-. H2O complex is reported via predissociation of the size-selected F-. H2O . Ar-m (m = 1-3) clusters. A weak, sharp band at 3690 cm(-1) confirms that this species adopts the asymmetric arrangement typical of the heavier halides, while the band arising from the ionic H-bond (IHB) is shifted very far to the red of the free H2O bands (shift similar to 800 cm(-1)). The observed band position is actually found in the region of the predicted 'overtone' of the H-bonded oscillator, where the OH stretching vibration occurs in a very strongly anharmonic O-H ... F- potential surface in which the first excited vibrational level samples the HF-OH- proton transfer configuration. (C) 2000 Elsevier Science B.V. All rights reserved.

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页码：455 / 459

页数：5

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