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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 8, Number 1
BKCSDE 8(1)
January 20, 1987 
 
Title
 Crystal Structure of Pentapotassium Disodium Hexatungstoantimonate(Ⅴ) Dodecahydrate, K5Na2[SbW6O24]·12H2O
Author
 Uk Lee*, Yukiyoshi Sasaki
Keywords
Abstract
 The crystal structure of K5Na2[SbW6O24]·12H2O has been determined. Final R = 0.081 for 890 observed independent reflections collected by diffractometry. Crystal data as follows; trigonal, space group R3m, a = 9.794(1) Å, α = 84.72(1)°, Z = 1. The heteropolyanion has a structure with point symmetry D3d (3m), of the ideal Anderson-type heteropolyanion. The Sb-W and W-W distances are 3.259(2) and 3.259(3) Å. Three types of W-O (W-Ot, W-Oband W-Oc) distances are 1.73(2), 1.95(4) and 2.20(3) Å. The Sb-O distance is 1.97(3) Å.
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