REACTIVITY OF SULFUR-CONTAINING MOLECULES ON NOBLE-METAL SURFACES .2. TERT-BUTYLTHIOALCOHOL ON AU(110)

被引：26

作者：

JAFFEY, DM ^{[1
]}

MADIX, RJ ^{[1
]}

机构：

[1] STANFORD UNIV,DEPT CHEM ENGN,STANFORD,CA 94305

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1994年 / 116卷 / 07期

关键词：

D O I：

10.1021/ja00086a034

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The adsorption of tert-butyl thioalcohol on clean and sulfided Au(110) surfaces has been investigated with temperature programmed reaction spectroscopy. About half of the thiol adsorbed at 100 K undergoes S-H bond cleavage below 300 K to form tert-butyl thiolate; H-2 and H2S are evolved between 150 and 350 K, the relative amounts depending on the surface sulfur coverage. tert-Butyl thiolate decomposes above 400 K on both clean and sulfided Au(110) surfaces via several competing processes to yield tert-butyl thioalcohol, isobutene, and H2S in the gas phase, together with adsorbed sulfur. The mechanism by which this reaction occurs is dominated by gamma-H transfer to either coadsorbed tert-butyl thiolate or sulfur-organometallic reactions which may be unique to surfaces.

引用

页码：3012 / 3019

页数：8

共 57 条

[1] CLEAVAGE OF CARBON-SULFUR BONDS IN THIOLATO LIGANDS IN OSMIUM CARBONYL CLUSTER COMPOUNDS - THE SYNTHESIS AND STRUCTURAL CHARACTERIZATION OF H2OS6(CO)18(MU-4-S)(MU-3-S) AND 2 ISOMERS OF H2OS6(CO)17(MU-4-S)(MU-3-S) [J].