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Zur Kristallstruktur der Thiocuprate K3Cu8S6 und Rb3Cu8S6 / On the Crystal Structure of the Thiocuprates K3Cu8S6 and Rb3Cu8S6

Author:
Burschka, Christian
Source:
Zeitschrift für Naturforschung 2014 v.34 no.5 pp. 675-677
ISSN:
0932-0776
Subject:
X-ray diffraction, carbonates, copper, crystal structure, crystals, sulfur
Abstract:
The title compounds can be synthesized by fusion reaction of the alkali carbonates with copper and sulfur at 790 °C. The structure was solved from X-ray diffractometer data of single crystals and refined to an R-value of 0.06. The compounds crystallize with the same layer-type structure which is closely related to that of KCU₃S₂. Crystal data for K₃Cu₈S₆ (Rb₃Cu₈S₆): space group C2/m,z = 2, ϱcₐₗc = 4.27(4.76) g/cm 3 , a = 17.332(4) (17.840(6)) Å, b = 3.830(2) (3.865(1)) Å, c = 9.889(4) (10.011(3)) Å, β = 104.12(2)° (104.91(2)°).
Agid:
5215906