FTIR OVERTONE SPECTROSCOPY ON SURFACES - THE C-O MODE IN CHEMISORBED METHOXY ON NI(111)

被引：53

作者：

ZENOBI, R ^{[1
]}

XU, JZ ^{[1
]}

YATES, JT ^{[1
]}

PERSSON, BNJ ^{[1
]}

VOLOKITIN, AI ^{[1
]}

机构：

[1] FORSCHUNGSZENTRUM JULICH, IFF, W-5170 JULICH 1, GERMANY

来源：

CHEMICAL PHYSICS LETTERS | 1993年 / 208卷 / 5-6期

关键词：

D O I：

10.1016/0009-2614(93)87165-Y

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：

We report the observation of a vibrational overtone for an adsorbate on a single crystal surface by high-resolution vibrational spectroscopy. A very weak absorption band at 2017 cm-1 is identified as the first overtone of the C-O stretching fundamental (at 1027 cm-1) of CH3O-Ni (111). The anharmonic shift in the absence of dipole-dipole coupling and mechanical renormalization is determined to be 8.5 +/- 2 cm-1, slightly smaller than that of the C-0 stretching vibration in methanol, 12.5 cm-1. Surprisingly, no C-O bond weakening is found in CH3O-Ni (111) compared to gas-phase methanol.

引用

页码：414 / 419

页数：6

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