Acta Crystallographica Section C

Crystal Structure Communications

Volume 57, Part 10 (October 2001)

Acta Cryst. (2001). C57, 1127-1128    [doi:10.1107/S0108270101006230]

Alkaline metal oxoantimonates(III), A₃[SbO₃] (A = K or Cs)

F. Emmerling and C. Röhr

Abstract: The two title trialkaline trioxoantimonates(III), tripotassium trioxoantimonate(III), K₃[SbO₃], (I), and tricaesium trioxoantimonate(III), Cs₃[SbO₃], (II), crystallize in the cubic Na₃[AsS₃] structure type in space group P2₁3. The structures show discrete -tetrahedral [SbO₃]^3- anions with C_3v point-group symmetry. The Sb-O distances are 1.923  (4)  Å in (I) and 1.928  (2)  Å in (II), and the O-Sb-O bond angles are 99.5  (2)° in (I) and 100.4  (1)° in (II).

Formula: K₃[SbO₃] and Cs₃[SbO₃]

Online 12 October 2001

	Structure factor file (CIF format) (23.0 kbytes) Contains datablock I
	Structure factor file (CIF format) (37.5 kbytes) Contains datablock II

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