CRYSTAL-STRUCTURE OF AMMINE SILVER(I) P-NITROBENZOATE

The silver(I) complex Ag-2(NO2C6H4CO2)(2)(NH3) Crystallizes in space g roup C2/c with a = 21.141(3), b = 6.459(1), c = 12.219(1)Angstrom, bet a = 104.64(1)degrees, V = 1614.3(6)Angstrom 3 and Z = 4. The structure was refined for 2340 reflections to R = 0.039. The p-nitrobenzoate li gand coordinates by means of a carboxylato-O,O' bridged mode involving a pair of silver atoms. The silver atoms present two coordination mod es : Ag1, sitting on a centre of symmetry, is in a linear arrangement O-Ag-O with a short Ag-O bond (Ag-O = 2.095(3) Angstrom); Ag2 laying o n a twofold axis exhibits a trigonal environment with two O atoms belo nging to two carboxylate groups (Ag-O = 2.319(3) Angstrom) and one N a tom from ammonia located on the same twofold axis (Ag-N = 2.154(5) Ang strom). The crystal is a one dimensional network polymer with Ag - Ag distances of 3.151(1) Angstrom.