Synthese und Strukturanalyse von Na3SbSe3·3Sb2O3·0,5Sb(OH)3

Autor: Kluger, Friedrich, Pertlik, Franz
Zdroj: Monatshefte für Chemie / Chemical Monthly; February 1985, Vol. 116 Issue: 2 p149-156, 8p
Abstrakt: Investigations in the “system” Sb-Se-NaOH-H2O, hydrothermal conditions, yielded crystals of the compound Na3SbSe3·3Sb2O3·0,5Sb(OH)3. The structure of this compound (a=14.40 Å,c=5.568 Å; space group P 63-C66;Z=2) was determined from 985 independent X-ray intensities — collected on an automaticWeissenberg type diffractometer — by thePatterson method and refined by the least squares method toR=8.3% (with s-weighting 5.9%). The structure consists of SbO3 pyramids which are connected via common oxygen corners to “tubes” parallel [001]. These “tubes” and SbSe3 pyramids are combined by Na atoms to a framework. The Sb(OH)3 groups are statistically located within the channels of the “tubes”.
Databáze: Supplemental Index