SYNTHESIS AND CHARACTERIZATION OF [NH3(CH2)(4)NH3][GA(PO4)(PO3OH)], AONE-DIMENSIONAL GALLOPHOSPHATE

A new one-dimensional gallium phosphate, [NH3(CH2)(4)NH3] [Ga(PO4)(PO3 OH)], has been synthesized under solvothermal conditions at 433 K in t he presence of 1,4-diaminobutane and the structure determined using ro om-temperature single-crystal Xray diffraction data (M-r = 350.84, ort horhombic, space group Pnaa, a = 9.109(1), b = 11.021(1), c = 11.987(1 )Angstrom V = 1203.3 Angstrom(3), Z = 4, R = 2.84% and R-w = 3.54% for 937 observed data (I > 3(sigma(I))). The structure contains chains of alternating corner sharing GaO4 and PO4 tetrahedra between which lie diaminocations, The chains are held together by both strong interchain and chain-diamine hydrogen-bonding interactions giving rise to a new three-dimensional structure. This is compared with the structures of [ NH3(CH2)(3)NH3] [Ga(PO4)(PO3OH)] and related aluminophosphates. (C) 19 98 Academic Press.