A novel hybrid material based on two symmetrically independent Keggin polyoxoanions: [NH3-CH(CH3)COOH][H3O](8)[PMo12O40](3 center dot)4NH(3)CH(CH3)COO

作者：Pourayoubi M; Mahjoub A R^*

来源：Journal of the Iranian Chemical Society, 2008, 5(3): 430-435.

• hybrid material
• symmetrically independent Keggin polyoxoanions
• crystal structure
• alanine

Novel polyoxometalate-based organic-inorganic hybrid [NH3-CH(CH3)COOH][H3O](8)[PMo12O40](3 center dot)4NH(3)CH(CH3)COO was synthesized and characterized by (31)p, H-1, C-13 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) angstrom, b = 34.480(4) angstrom, c = 12.8968(13) angstrom and Z =2.

• 出版日期2008-9