Poly[[aqua-[μ(5)-5-(isonicotinamido)-isophthalato][μ(4)-5-(isonicotinamido)-isophthalato]holmium(III)silver(I)] dihydrate].
The title heteronuclear complex, {[AgHo(C(14)H(8)N(2)O(5))(2)(H(2)O)]·2H(2)O}(n), has a three-dimensional polymeric structure, generated by the carboxyl-ate and pyridine groups of the 5-(isonicotinamido)-isophthalate (INAIP) ligands bridging the metal atoms. The Ho(III) atom is coordinated by seven O atoms from INAIP ligands and a water mol-ecule in a distorted square-anti-prismatic geometry, while the Ag(I) atom has a distorted trigonal-planar AgN(2)O geometry. Inter-molecular O-H⋯O and N-H⋯O hydrogen bonds stabilize the crystal structure.
Department of Chemistry and Materials Science, Hengyang Normal University, Hengyang Hunan 421008,  People's Republic of China.
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