Abstract
The asymmetric unit of the title salt, [Ag(C(14)H(14)N(4)O(2))(1.5)](CF(3)SO(3)), comprises a Ag(+) cation, three half-mol-ecules of N,N'-bis-(2-pyridyl-meth-yl)oxalamide (each of which is dis-posed about a centre of inversion) and a trifluoro-methane-sulfonate anion. Distinct coordination modes are found for the bridging ligands, i.e., a μ(2),κ(2)-bridging mode involving pyridine N atoms for one ligand, and a μ(2),κ(4)-bridging mode, employing both pyridine N and amide O atoms for the remaining ligands. The Ag(+) cations, which are in a distorted square-pyramidal coordination, and the ligands combine to form a two-dimensional array parallel to (101); these arrays are connected into a three-dimensional structure by trifluoro-methane-sulfonate anions via N-H⋯O, C-H⋯O, and C-F⋯O inter-actions.