Physical Inorganic Chemistry
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ChemInform Abstract: MAl2Ta35O70 (M: Na, K, Rb), Low-Valent Oxotantalates with Discrete Cuboctahedral Ta6O12 Clusters.
First published: 21 June 2010
Abstract
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ChemInform Abstract
The title compounds are prepared by reduction of Ta2O5 with Ta and Al in the presence of M2CO3 (M: Na, K, Rb; 1650 K, sealed Ta-tube, 72 h). Single crystal XRD data are given for NaAl2Ta35O70 (space group P
, Z = 1). The layered structure is closely related to that of Rb4Al2Nb35O70, but has a lower alkali metal content.
