title: Diamminesilver(I) bis(2-amino-5-nitrobenzoato-kappa2O1,O1')silver(I): a two-dimensional supramolecular sheet with a short intersheet distance containing a rare four-coordinate planar silver(I) centre.
abstract: The asymmetric unit of the title compound, [Ag(NH(3))(2)][Ag(C(7)H(5)N(2)O(4))(2)], comprises half an [Ag(NH(3))(2)](+) cation and half an [Ag(anbz)(2)](-) anion (anbz is 2-amino-5-nitrobenzoate). Both Ag(I) ions are located on inversion centres. The cation has a linear coordination geometry with two symmetry-related ammine ligands. The Ag(I) cation in the anionic part shows a rare four-coordinate planar geometry completed by two chelating symmetry-related anbz ligands. Intra- and intermolecular N-H...O hydrogen bonds create a slightly undulating two-dimensional supramolecular sheet. Adjacent sheets are only ca 3.3 A apart. Ag...O, Ag...N and pi-pi stacking interactions consolidate the packing of the molecules in the solid state.
authors.affiliation: Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China.
authors.forename: Di
authors.initials: D
authors.lastname: Sun
authors.forename: Na
authors.initials: N
authors.lastname: Zhang
authors.forename: Rong Bin
authors.initials: RB
authors.lastname: Huang
authors.forename: Lan Sun
authors.initials: LS
authors.lastname: Zheng