Current location: JICS Archive > Vol. 5 > No. 3 > Articles : 10
A Novel Hybrid Material Based on Two Symmetrically Independent KegginPolyoxoanions: [NH3-CH(CH3)COOH][H3O]8[PMo12O40]3.4NH3CH(CH3)COO
M. Pourayoubi and A.R. Mahjoub*
Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran
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 PMo12O40 3-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) Å,
b = 34.480(4) Å, c = 12.8968(13) Å and Z
= 2.
Keywords: Hybrid material, Symmetrically independent Keggin polyoxoanions, Crystal structure, Alanine
