title: Poly[[di-μ(3)-nicotinato-hemi-μ(4)-oxalato-hemi-μ(2)-oxalato-neodymium(III)silver(I)] dihydrate].
abstract: The asymmetric unit of the title compound, {[AgNd(C(6)H(4)NO(2))(2)(C(2)O(4))]·2H(2)O}(n), contains one Nd(III) atom, one Ag(I) atom, one oxalate ligand, two nicotinate ligands and two uncoordinated water mol-ecules. The Nd(III) atom is eight-coordinated in a distorted square-anti-prismatic coordination geometry by four O atoms from two oxalate ligands and four O atoms from four nicotinate ligands. The Ag(I) atom has a T-shaped configuration, defined by two N atoms from two nicotinate ligands and one O atom from one oxalate ligand. The nicotinate and oxalate ligands link the Nd and Ag atoms into a three-dimensional coordination framework. O-H⋯O and O-H⋯N hydrogen bonds donated by water mol-ecules are observed in the crystal.
authors.affiliation: Department of Chemistry, Bijie University, Bijie, Guiyang 551700, People's Republic of China.
authors.forename: Xiao-Yan
authors.initials: XY
authors.lastname: Nie
authors.forename: Qian-Zhu
authors.initials: QZ
authors.lastname: Li