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The double salts M3RE(SO4)3 (M=K, Rb) with framework structures

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The crystal structures of K3Er(SO4)3 [space group Pc, a=9.222(2), b=14.688(1), c=9.008(1) Å, β=110.72(2)o, Z=4, R=0.59] and of Rb3Tm(SO4)3 [space group Cc, a=10.649(2), b=15.149(3), c=9.320(2) Å, β=124.49(1)o, Z=4, R=0.043] have been studied (CAD-4 diffractometer, Mo radiation). It has been shown that the compounds K3RE(SO4)3 (RE=Nd−Er) and Rb3RE(SO4)3 (RE=Tm−Lu), which crystallize in accordance with these structural types, form a family of framework structures with a single basis. The relationship between their structure and the structure of the rhombohedral compounds M3MIII(SO4)3 (MIII=Al, Ga, In) and Cs3Yb(SO4)3 has been examined.

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Authors
  1. L. D. Iskhakova
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  2. Yu. M. Gasanov
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Scientific-Research Institute of Chemical Reagents and Ultrapure Chemical Substances. Translated from Zhurnal Strukturnoi Khimii, Vol. 32, No. 2, pp. 110–115, March–April, 1991.

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Iskhakova, L.D., Gasanov, Y.M. The double salts M3RE(SO4)3 (M=K, Rb) with framework structures. J Struct Chem 32, 245–249 (1991). https://doi.org/10.1007/BF00777196

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  • DOI: https://doi.org/10.1007/BF00777196

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