Structure of New Layered Bimetallic Hydrogenoselenite Copper Selenium

被引：7

作者：

Belgaroui, H. ^{[1
]}

Loukil, M. ^{[1
]}

Kabadou, A. ^{[1
]}

Khemakhem, H. ^{[2
]}

Ben Salah, A. ^{[1
]}

机构：

[1] Fac Sci Sfax, Lab Sci Mat & Environm, Sfax 3018, Tunisia

[2] Fac Sci Sfax, Lab Mat Ferroelect, Sfax 3018, Tunisia

来源：

JOURNAL OF CHEMICAL CRYSTALLOGRAPHY | 2013年 / 43卷 / 07期

关键词：

Structural study; Dielectric properties; Bimetallic hydrogenoselenites; HYDROGENSELENITE MONOHYDRATE; VIBRATIONAL-SPECTRA; RAMAN-SPECTRA; CRYSTAL; ACID;

D O I：

10.1007/s10870-013-0427-9

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The structure of a newly layered copper selenium hydrogenoselenite [Cu(HSeO3)(2)Cu0.335Se0.582Cl3(H2O)(3)] has been solved from single crystal X-ray diffraction data and refined to a final reliability factor R (1) = 0.038. It was found having an orthorhombic space group Pna2(1), with a = 9.0743(4) a"<<, b = 7.1753(4) a"<<, c = 17.7246(9) a"<<, V = 1154.06(10) a"<<(3), and Z = 4. This structure is three-dimensional but it may be described as a bi-dimensional structure made of layers, parallel to the (010) plane, which contain copper atoms and (HSeO3)(-) anions. The sheets are interconnected by [CuCl3(H2O)(3)] groups. The Se and Cu oxidation state was evaluated using bond valence sum calculations. The presence of hydrogenoselenites (nu Se-O-H, 1,222 cm(-1)) was confirmed by IR and Raman spectra. The dielectric constant at different frequencies and temperatures revealed a phase transition at 383 K.

引用

页码：352 / 359

页数：8

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