STRUCTURE AND VIBRATIONAL PROPERTIES OF METHANETHIOLATE ADSORBED ON SILVER

被引：15

作者：

LEE, SB

KIM, K

KIM, MS

OH, WS

LEE, YS

机构：

[1] SEOUL NATL UNIV,COLL NAT SCI,DEPT CHEM,SEOUL 151742,SOUTH KOREA

[2] KOREA ADV INST SCI & TECHNOL,DEPT CHEM,TAEJON 305701,SOUTH KOREA

[3] KOREA ADV INST SCI & TECHNOL,CTR MOLEC SCI,TAEJON 305701,SOUTH KOREA

来源：

JOURNAL OF MOLECULAR STRUCTURE | 1993年 / 296卷 / 1-2期

关键词：

D O I：

10.1016/0022-2860(93)80112-9

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 adsorption of methanethiolate on a silver surface has been investigated by surface-enhanced Raman spectroscopy. Two distinct CS stretching bands were observed, one being favorable at submonolayer coverages and the other at the full coverage limit. Results of ab initio molecular orbital calculations imply that the former band is attributable to the thiolate species adsorbed on a multiple site such as the bridge or the four-fold site, and the latter to that adsorbed on the on-top site. Calculated results also suggest that the observed CS stretching band of the thiolate anion in solution is blue-shifted compared with that in the gas phase owing to the hydration of the anion in solution.

引用

页码：5 / 13

页数：9

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