title: Potassium, rubidium and ammonium salts of μ-(formato-κ2O:O')-μ-oxido-bis[oxidobis(peroxido-κ2O,O')molybdate(VI)].
abstract: The unit-cell parameters of the three title salts, namely, tripotassium, K(3)[Mo(2)(CHO(2))O(3)(O(2))(4)], trirubidium, Rb(3)[Mo(2)(CHO(2))O(3)(O(2))(4)], and triammonium μ-(formato-κ(2)O:O')-μ-oxido-bis[oxidobis(peroxido-κ(2)O,O')molybdate(VI)], (NH(4))(3)[Mo(2)(CHO(2))O(3)(O(2))(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 μ-oxido-bis(oxidodiperoxidomolybdate) unit.
authors.affiliation: Department of Material Science and Chemistry, Faculty of Systems Engineering, Wakayama University, 930 Sakaedani, Wakayama 640-8510, Japan.
authors.forename: Masaki
authors.initials: M
authors.lastname: Takehara
authors.forename: Masato
authors.initials: M
authors.lastname: Hashimoto