STUDIES OF MIXED-VALENCE STATES IN 3-DIMENSIONAL HALOGEN-BRIDGED GOLD COMPOUNDS, CS2AUIAUIIIX6 (X = CL, BR OR I) .2. X-RAY PHOTOELECTRON SPECTROSCOPIC STUDY

被引：103
|
作者：
KITAGAWA, H
KOJIMA, N
NAKAJIMA, T
机构：
[1] KYOTO UNIV,FAC SCI,DEPT CHEM,SAKYO KU,KYOTO 606,JAPAN
[2] KYOTO UNIV,FAC ENGN,DEPT IND CHEM,SAKYO KU,KYOTO 606,JAPAN
来源：
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 1991年 / 11期
关键词：
D O I：
10.1039/dt9910003121
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The mixed-valence states in Cs2Au(I)Au(III)X6 (X = Cl, Br or I) were systematically studied by X-ray photoelectron spectroscopy of the Au 4f region for the first time. The gold valence states in halogeno complexes of Au(I) and Au(III) were also studied. In Cs2Au2X6 the difference between the oxidation state of Au(I) and that of Au(III) decreases as the covalency of the -Au(I)-X-Au(III)-X- bonds increases in the order X = Cl < Br < I, because the charge-transfer interaction between Au(I) and Au(III) through the bridging halogen becomes stronger in this order. In the non-stoichiometric CsAu0.6Br2.6 the oxidation state of Au is considered to be almost homogeneous.
引用
收藏
页码：3121 / 3125
页数：5
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