Poly[[diaqua-bis-(μ(3)-3-carboxyl-ato-4-hy-droxy-benzene-sulfonato)-tri-μ(2)-pyrazine-tetra-silver(I)] dihydrate].
The title coordination polymer, {[Ag(4)(C(7)H(4)O(6)S)(2)(C(4)H(4)N(2))(3)(H(2)O)(2)]·2H(2)O}(n), contains two independent Ag(I) ions. One Ag(I) ion is coordinated by one O atom from a 3-carboxyl-ato-4-hy-droxy-benzene-sulfonate (L) ligand, two N atoms from two pyrazine ligands and a water mol-ecule. The other Ag(I) ion is coordinated by two O atoms from two L ligands and one N atom from a pyrazine ligand. One of the pyrazine ligands lies on an inversion center. The L and pyrazine ligands link the Ag(I) ions into polymeric layers parallel to the ac plane. The layers are connected by inter-molecular O-H⋯O hydrogen bonds. An intra-molecular O-H⋯O hydrogen bond is also present in the L ligand.
Department of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013,  People's Republic of China.
Ying-Ying
YY
Liu
Shen-Tang
ST
Wang
Yong-Sheng
YS
Yan