REACTION OF CARBON-MONOXIDE IN THE SUPERACID HSO3F-AU(SO3F)3 AND THE GOLD(I) BIS(CARBONYL) CATION [AU(CO)2]+ - ISOLATION AND CHARACTERIZATION OF GOLD(I) CARBONYL FLUOROSULFATE, AU(CO)SO3F

被引:101
作者
WILLNER, H [1 ]
AUBKE, F [1 ]
机构
[1] UNIV BRITISH COLUMBIA,DEPT CHEM,VANCOUVER V6T 1Y6,BC,CANADA
关键词
D O I
10.1021/ic00337a004
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Solutions of gold tris(fluorosulfate), Au(SO3F)3, in fluorosulfuric acid, HSO3F, behave as superacids and will dissolve up to ~3.5 mol of CO/mol of Au(SO3F)3. During the CO uptake, Au(III) is reduced to Au(I), with Au+(solv) stabilized by CO to give the cation [(OC)Au(CO)]+(solv). The linear five-atom cation is characterized by its vibrational spectrum with CO stretching frequencies observed at 2251 (Raman) and 2211 (IR) cm−1. The cation is stable in solution, but solvent removal in vacuo leads to the formation of a new gold(I) monocarbonyl derivative, Au(CO)SO3F, in quantitative yield as a white solid. Au(CO)SO3F is thermally stable up to 190 °C. The CO stretch is found at 2198 and 2195 cm−1 in the Raman and IR spectra, respectively, well above the value of free CO. © 1990, American Chemical Society. All rights reserved.
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页码:2195 / 2200
页数:6
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