SYNTHESIS AND STRUCTURE OF [AG(DPPM)NO3]2

The crystal of the title complex, C50H44Ag2N2O6P4, Mr = 1108.67, belongs to monoclinic system, space group Cc, with dimensions: a = 1.2704(1), b = 1.7028(2), c = 2.2634(5) nm; beta = 100.66(1)-degrees; V = 4.8117 nm3; Z = 4; Dc = 1.530 g.cm-3; mu = 9.851 cm-1; F(000) = 2240.0. The two Ag atoms in the molecule are associated respectively with four terminal phosphorus atoms of two dppm molecules. Each Ag atom is of four coordinates. The NO3- anion donates asymmetrycally through two oxygen atoms coordinating to each Ag atom. The distance between two Ag atoms in the molecule is short, 0.3089 nm, but there is no bonding between them.