Acta Cryst. (2001). E57, i112-i114  [ doi:10.1107/S1600536801019365 ]

Tripotassium hexahydrogen hexamolybdocobaltate(III) heptahydrate, K₃[H₆CoMo₆O₂₄]·7H₂O

U. Lee, H.-C. Joo, J.-S. Kwon and M.-A. Cho

Abstract: The very stable title crystals, K₃[H₆CoMo₆O₂₄]·7H₂O, that include the well known B-type Anderson-Evans heteropolyoxometalate, were obtained by recrystallization of powder K₃[H₆CoMo₆O₂₄]·nH₂O at pH 3.5.  The unit cell consists of two different crystallographically discrete [H₆CoMo₆O₂₄]^3- polyanions. The two anions have the Co atoms at inversion centers and have close to m symmetry, with Co-O bond lengths in the range 1.898  (3)-1.912  (3)  Å, Mo-O bond lengths in the ranges 1.700  (4)-1.726  (4), 1.895  (3)-1.960  (3) and 2.259  (3)-2.313  (3)  Å.

Online 24 November 2001

Copyright © International Union of Crystallography
IUCr Webmaster