Kurt O. Klepp, Ferdinand Fabian,
"New Chalcogenogermanates with Adamantane Type Complex Anions: Preparation and Crystal Structures of K4Ge4S10, Rb4Ge4S10, Rb4Ge4Se10 and Cs4Ge4Se10"
, in Zeitschrift für Naturforschung B: A Journal of Chemical Sciences, 8-1999, ISSN: 0932-0776, K.O. Klepp, F. Fabian: New Chalcogenogermanates with Adamantane Type Complex Anions: Preparation and Crystal Structures of K4Ge4S10, Rb4Ge4S10, Rb4Ge4Se10 and Cs4Ge4Se10, Z. Naturforsch. 54b (1999) 1499-1504
Original Titel:
New Chalcogenogermanates with Adamantane Type Complex Anions: Preparation and Crystal Structures of K4Ge4S10, Rb4Ge4S10, Rb4Ge4Se10 and Cs4Ge4Se10
Sprache des Titels:
Englisch
Original Kurzfassung:
The title compounds were obtained by reacting stoichiometric quantities of the corresponding dialkalimonochalcogenide, germanium powder and chalcogen at 1073 K. The four compounds are isostructural, crystallizing in space group C2/c, Z=4 with K4Ge4S10: a=15.161(3), b=15.198(2), c=8.760(2)Ä, beta=105.36(3)?, Rb4Ge4S10: a=15.282(7), c=9.390(7)Ä, beta=105.79(2)? and Cs4Ge4Se10: a=16.348(9), b=16.49(1), c=9.771(3)Ä, beta=107.10(3)?. Their crystal structures were solved and refined from single crystal diffractometer data (MoKalpha radiation) obtained at 294 K. They are characterized by the formation of discrete adamantane-like complex anions [Ge4Q10](4-) which are arranged in slabs parallel to (010). Mean Ge-S bond lengths are 2.202Ä for K4Ge4S10 and 2.186Ä for Rb4Ge4S10 while the mean Ge-Se bond length in both selenides amounts to 2.332(3)Ä. Terminal and bridging Ge-Q bonds differ by at least 0.1Ä. The atomic arrangement corresponds to that of Tl4Ge4S10
Sprache der Kurzfassung:
Englisch
Journal:
Zeitschrift für Naturforschung B: A Journal of Chemical Sciences
Erscheinungsmonat:
8
Erscheinungsjahr:
1999
Notiz zum Zitat:
K.O. Klepp, F. Fabian: New Chalcogenogermanates with Adamantane Type Complex Anions: Preparation and Crystal Structures of K4Ge4S10, Rb4Ge4S10, Rb4Ge4Se10 and Cs4Ge4Se10, Z. Naturforsch. 54b (1999) 1499-1504
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