Cs4K2CuSi2O8:: Synthesis, crystal structure, UV-vis-IR data

被引：0

作者：

Möller, A ^{[1
]}

机构：

[1] Univ Cologne, Inst Anorgan Chem, D-50939 Cologne, Germany

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2000年 / 626卷 / 11期

关键词：

crystal structure; copper; silicates; UV/Vis spectroscopy;

D O I：

10.1002/1521-3749(200011)626:11<2251::AID-ZAAC2251>3.0.CO;2-Z

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Cs4K2CuSi2O8 may be obtained via a redox reaction of KCuO2 in the presence of Cs2O and SiO2 with the container material (Cu) at 450 degreesC as blue single crystals which are sensitive to moisture. Powder samples were obtained by annealing intimate mixtures of the binary oxides under an inert gas atmosphere (Ar) in sealed Ag containers at 500 degreesC, The crystal structure contains isolated trimeric anions of [O2SiO2CuO2SiO2](6-). Cu2+ in square-planar coordination share trans-edges with [SiO4] tetrahedra. Spectroscopic investigations focus on the bonding situation of the [CuO4] unit (AOM) and characteristic vibrational modes of the silicate.

引用

页码：2251 / 2252

页数：2

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HOFMANN R, 1989, Z ANORG ALLG CHEM, V569, P31