Acta Crystallographica Section C

Crystal Structure Communications

Volume 69, Part 1 (January 2013)

metal-organic compounds

Acta Cryst. (2013). C69, 37-40    [ doi:10.1107/S0108270112049803 ]

Potassium, rubidium and ammonium salts of [mu]-(formato-[kappa]2O:O')-[mu]-oxido-bis­[oxidobis(peroxido-[kappa]2O,O')molybdate(VI)]

M. Takehara and M. Hashimoto

Abstract: The unit-cell parameters of the three title salts, namely, tripotassium, K3[Mo2(CHO2)O3(O2)4], trirubidium, Rb3[Mo2(CHO2)O3(O2)4], and triammonium [mu]-(formato-[kappa]2O:O')-[mu]-oxido-bis­[oxidobis(peroxido-[kappa]2O,O')molybdate(VI)], (NH4)3[Mo2(CHO2)O3(O2)4], which were all crystallized at pH 3, are quite similar, but the potassium and rubidium salt structures are noncentrosymmetric, whereas that of the ammonium salt is centrosymmetric. Formate acts as an O:O'-bridging ligand in the complex anion and is bound to a [mu]-oxido-bis(oxido­di­per­oxido­molybdate) unit.

Formula: K3[Mo2(CHO2)O3(O2)4], Rb3[Mo2(CHO2)O3(O2)4] and (NH4)3[Mo2(CHO2)O3(O2)4]

hkldisplay filedownload file

Structure factor file (CIF format) (150.5 kbytes)
[ doi:10.1107/S0108270112049803/sf3186Isup2.hkl ]
Contains datablock I

hkldisplay filedownload file

Structure factor file (CIF format) (161.3 kbytes)
[ doi:10.1107/S0108270112049803/sf3186IIsup3.hkl ]
Contains datablock II

hkldisplay filedownload file

Structure factor file (CIF format) (87.7 kbytes)
[ doi:10.1107/S0108270112049803/sf3186IIIsup4.hkl ]
Contains datablock III


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