SYNTHESIS OF NEW LOW-DIMENSIONAL QUATERNARY COMPOUNDS, KCU2ASS3 AND KCU4ASS4, IN SUPERCRITICAL AMINE SOLVENT - ALKALI-METAL DERIVATIVES OF SULFOSALTS

Citation
Je. Jerome et al., SYNTHESIS OF NEW LOW-DIMENSIONAL QUATERNARY COMPOUNDS, KCU2ASS3 AND KCU4ASS4, IN SUPERCRITICAL AMINE SOLVENT - ALKALI-METAL DERIVATIVES OF SULFOSALTS, Inorganic chemistry, 33(9), 1994, pp. 1733-1734
Citations number
21
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
ISSN journal
00201669
Volume
33
Issue
9
Year of publication
1994
Pages
1733 - 1734
Database
ISI
SICI code
0020-1669(1994)33:9<1733:SONLQC>2.0.ZU;2-N
Abstract
The reaction of KAsS2, copper powder, and elemental sulfur in supercri tical ethylenediamine (300-350-degrees-C and 3500 psi) leads to format ion or two new quaternary solids having the formulas KCu2AsS3 and KCu4 AsS4. Both products are orange crystalline solids having complex low-d imensional structures of Cu(I) linked by AsS33- groups, forming layers (for KCu2AsS3) or channels (for KCu4-AsS4). The KCu4AsS4 compound als o contains lone sulfide ions, which help to cross-link layers. Both so lids can be considered alkali metal derivatives of sulfosalts.