title: catena-Poly[[bis(mu2-4-methylbenzoato-kappa2O:O')disilver(I)(Ag-Ag)]-mu2-di-2-pyridylamine-kappa2N2:N2'] and catena-poly[[(di-2-pyridylamine-kappaN2)(mu2-4-nitrobenzoato-kappa2O:O')disilver(I)(Ag-Ag)]-mu3-4-nitrobenzoato-kappa3O:O':O'].
abstract: Both title compounds are polynuclear polymeric complexes with binuclear units. In the former compound, [Ag2(C8H7O2)2(C10H9N3)]n, the two Ag(I) atoms display distorted square-planar coordinations. This compound contains a twofold axis and a crystallographic inversion centre, and di-2-pyridylamine (DPA) ligands crosslink adjacent binuclear units to form infinite polymeric chains. Crystal packing is stabilized by van der Waals interactions and partial pi-pi stacking interactions between the chains. The latter compound, [Ag2(C7H4NO4)2(C10H9N3)]n, contains crystallographic inversion centres and the two Ag(I) atoms exhibit two types of distorted square-pyramidal coordination. Ag-Ag argentophilic interactions and Ag-O crosslinking between adjacent binuclear units contribute to form infinite polymeric chains. Weak pi-pi stacking interactions are observed in the polymer chain. Crystal packing is stabilized by C-H...O hydrogen bonds and by weak pi-pi stacking interactions.
authors.affiliation: Faculty of Pharmaceutical Sciences, Kinki University, Kowakae 3-4-1, Higashiosaka, Osaka 577-8502, Japan. odoko@phar.kindai.ac.jp
authors.forename: Mamiko
authors.initials: M
authors.lastname: Odoko
authors.forename: Tomoyasu
authors.initials: T
authors.lastname: Ise
authors.forename: Nobuo
authors.initials: N
authors.lastname: Okabe
mesh_terms: D000588:Amines / Q000737:chemistry*; D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D008958:Models, Molecular; D008968:Molecular Conformation; D009942:Organometallic Compounds / Q000737:chemistry*; D011336:Probability
chemical_list: D000588:Amines; D009942:Organometallic Compounds; C518420:catena-poly(((di-2-pyridylamine-kappaN(2))-(mu2-4-nitrobenzoato-kappa(2)O-O')disilver(I)(Ag-Ag))-mu3-4-nitrobenzoato-kappa(3)O-O'-O'); C518419:catena-poly((bis(mu2-4-methylbenzoato-kappa(2)O-O')disilver(I)(Ag-Ag))-mu2-di-2-pyridylamine-kappa(2)N(2)-N(2'))