A novel hybrid material based on two symmetrically independent Keggin polyoxoanions: [NH3-CH(CH3)COOH][H3O]8[PMo12O40]3.4NH3CH(CH3)COO

Abstract

Novel polyoxometalate-based organic-inorganic hybrid [NH3-CH(CH3)COOH][H3O]8[PMo12O40]3.4NH3CH(CH3)COO was synthesized and characterized by 31P, 1H, 13C NMR and IR spectroscopies, elemental analysis and single crystal X-ray determination. Two of the PMo12O403− anions in the title hybrid are symmetrically equivalent. They are crystallographically independent from the third PMo12O403− polyoxoanion, in the case of various interactions with neighboring components in the crystal network (i.e.+NH3-CH(CH3)-COOH and H3O+ cations, +NH3CH(CH3)COO− zwitterions and polyoxoanions). The compound crystallizes in an orthorhombic C222 space group with a = 16.0392(16) A, b = 34.480(4) A, c = 12.8968(13) A and Z = 2.