Study of the electronic structure of polymeric cubane cluster compounds Mo4S4Cl4, GaMo4S8, and Ga4Mo4S4Te4 by X-ray electron and emission spectroscopy

被引：2
|
作者：
Khudorozhko, GF
Asanov, IP
Mazalov, LN
Kravtsova, EA
Parygina, GK
Fedorov, VE
Mironov, YV
机构：
来源：
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA | 1997年 / 83卷 / 2-3期
关键词：
electronic structure; group theory analysis; photoelectron spectra; polymeric cubane cluster; x-ray electron spectroscopy; x-ray emission spectroscopy;
D O I：
10.1016/S0368-2048(96)03078-2
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
The electronic structure of polymeric cubane cluster compounds Mo4S4Cl4, GaMo4S8, and GaMo4S4Te4 has been studied by X-ray electron and emission spectroscopy, The results of the investigation revealed that the higher occupied levels (MoMo bonds) contain mainly the d-orbitals of metal atoms and include also an appreciable contribution from the ligand orbitals. Upon substitution of Cl by S or Te the covalency of the metal-bridging ligand bonds is increased. Group theory analysis of orbital interactions in Mo4S4Cl4 has been performed. A comparison of the results of this analysis and the experimental data shows that the M-S and M-X bonds are many-centered in nature. Based on the experimental data obtained a qualitative model of the electronic structure of the valence band has been proposed. (C) 1997 Elsevier Science B.V.
引用
收藏
页码：129 / 136
页数：8
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