METHANOLOTHERMAL SYNTHESIS AND CRYSTAL-ST RUCTURE OF TETRASELENIDOARSENATES(V) AND -ANTIMONATES(V) OF RUBIDIUM AND CESIUM

Authors
WACHHOLD M SHELDRICK WS
Citation
M. Wachhold et Ws. Sheldrick, METHANOLOTHERMAL SYNTHESIS AND CRYSTAL-ST RUCTURE OF TETRASELENIDOARSENATES(V) AND -ANTIMONATES(V) OF RUBIDIUM AND CESIUM, Zeitschrift fur Naturforschung. B, A journal of chemical sciences, 51(1), 1996, pp. 32-36
Citations number
13
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear
Journal title
Zeitschrift fur Naturforschung. B, A journal of chemical sciences → ACNP
ISSN journal
09320776
Volume
51
Issue
1
Year of publication
1996
Pages
32 - 36
Database
ISI
SICI code
0932-0776(1996)51:1<32:MSACRO>2.0.ZU;2-C
Abstract
Methanolothermal reaction of M(2)CO(3) (M = Rb, Cs) with E(2)Se(3) (E = As, Sb) and Se at temperatures in the range 180 - 200 degrees C lead s to the formation of tetraselenidoarsenates(V) and -antimonates(V) M( 3)ESe(4) in moderate to quantitative yields. All four compounds crysta llize in the (NH4)(3)AsS4 structure type (space group Pnma) and contai n isolated slightly distorted tetrahedral ESe(4)(3-) anions with cryst allographic C-S symmetry. Both of the independent cations are coordina ted in an irregular manner by seven Se atoms.