title: Poly[bis(mu2-2-aminopyrazine-kappa2N1:N4)(mu2-nitrato-kappa2O:O)(nitrato-kappa2O,O')disilver(I)]: an achiral two-dimensional coordination polymer forming chiral crystals.
abstract: The solution reaction of AgNO(3) and 2-aminopyrazine (apyz) in a 1:1 ratio gives rise to the title compound, [Ag(2)(NO(3))(2)(C(4)H(5)N(3))(2)](n), (I), which possesses a chiral crystal structure. In (I), both of the crystallographically independent Ag(I) cations are coordinated in tetrahedral geometries by two N atoms from two apyz ligands and two O atoms from nitrate anions; however, the Ag(I) centers show two different coordination environments in which one is coordinated by two O atoms from two different symmetry-related nitrate anions and the second is coordinated by two O atoms from a single nitrate anion. The crystal structure consists of one-dimensional Ag(I)-apyz chains, which are further extended by mu(2)-kappa(2)O:O nitrate anions into a two-dimensional (4,4) sheet. N-H...O and C(apyz)-H...O hydrogen bonds connect neighboring sheets to form a three-dimensional supramolecular framework.
authors: Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China.
authors: Di
authors: D
authors: Sun
authors: Geng-Geng
authors: GG
authors: Luo
authors: Na
authors: N
authors: Zhang
authors: Rong-Bin
authors: RB
authors: Huang
authors: Lan-Sun
authors: LS
authors: Zheng
mesh_terms: D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D013237:Stereoisomerism
chemical_list: D009942:Organometallic Compounds; D011108:Polymers; C546037:poly(bis(mu2-2-aminopyrazine-kappa2N1-N4)(mu2-nitrato-kappa2O-O)(nitrato-kappa2O,O')disilver(I))