Bis(4-aminopyridine)silver(I) nitrate and tris(2,6-diaminopyridine)silver(I) nitrate
作者:Olof Kristiansson
DOI:10.1107/s0108270199014432
日期:2000.2.15
The bis(4-aminopyridine)silver(I) cation in [Ag(C5H6N2)(2)]NO3 has the Ag atom on a twofold axis and displays an N-Ag-N angle of 174.43 (15)degrees and an Ag-N distance of 2.122 (3) Angstrom. The two ligands are planar and the angle between the two ligand planes is 79.45 (9)degrees. The pyridine rings are stacked in piles with an interplanar distance of 3.614 (5) Angstrom, a distance that strongly suggests that pyridine pi-pi interactions have an appreciable importance with respect to the nonbonded crystal organization, The tris(2,6-diaminopyridine)silver(I) cation in [Ag(C5H7N3)(3)]NO3 has Ag-N distances of 2.243 (2), 2.2613 (17) and 2.4278 (18) Angstrom, and N-Ag-N angles of 114.33 (7), 134.91 (7) and 114.33 (7)degrees. The Ag+ ion is situated 0.1531 (2) Angstrom from the plane defined by the three pyridine N atoms.