Bis[[aqua(1H-imidazo[4,5-f][1,10]phenanthroline-κ2N6,N7)cadmium]bis(μ-pyridine-2,3-dicarboxylato)-κ3N,O2:O3;κ3O3:N,O2

Li-Juan Chen,Xiao-Hua Chen,Ming-Xing Yang,Hua Huang,Shen Lin

doi:10.1107/s160053681200579x

Abstract

In the title compound, [Cd2(C7H3NO4)2(C13H8N4)2(H2O)2], the CdII ion is six-coordinated by two N atoms from a 1H-imidazo[4,5-f][1,10]phenanthroline (IP) ligand, one N atom and one O atom from a pyridine-2,3-dicarboxylate (pdc) ligand, one O atom from another pdc ligand and one water molecule in a distorted octahedral geometry. Two CdII ions are bridged by a pair of pdc ligands, forming a centrosymmetric dinuclear structure. Neighboring dinuclear units are linked by the coordinated water molecules through O—H⋯N and O—H⋯O hydrogen bonds, forming a layer parallel to (011). The layers are further linked into a three-dimensional network through N—H⋯O hydrogen bonds. π–π interactions between the IP ligands further stabilize the supramolecular structure [centroid–centroid distances = 3.579 (3), 3.686 (3), 3.710 (3), 3.766 (3) and 3.841 (3) Å].

Highlights

In the title compound, [Cd2(C7H3NO4)2(C13H8N4)2(H2O)2], the CdII ion is six-coordinated by two N atoms from a 1Himidazo[4,5-f][1,10]phenanthroline (IP) ligand, one N atom and one O atom from a pyridine-2,3-dicarboxylate ligand, one O atom from another pdc ligand and one water molecule in a distorted octahedral geometry
Two CdII ions are bridged by a pair of pdc ligands, forming a centrosymmetric dinuclear structure
Neighboring dinuclear units are linked by the coordinated water molecules through O—H N and O—

Summary

Mo K radiation

In the title compound, [Cd2(C7H3NO4)2(C13H8N4)2(H2O)2], the CdII ion is six-coordinated by two N atoms from a 1Himidazo[4,5-f][1,10]phenanthroline (IP) ligand, one N atom and one O atom from a pyridine-2,3-dicarboxylate (pdc) ligand, one O atom from another pdc ligand and one water molecule in a distorted octahedral geometry. Two CdII ions are bridged by a pair of pdc ligands, forming a centrosymmetric dinuclear structure. Neighboring dinuclear units are linked by the coordinated water molecules through O—H N and O—. H O hydrogen bonds, forming a layer parallel to (011). The layers are further linked into a three-dimensional network through N—H O hydrogen bonds. – interactions between the IP ligands further stabilize the supramolecular structure [centroid–centroid distances = 3.579 (3), 3.686 (3), 3.710 (3), 3.766 (3) and 3.841 (3) Å]

Related literature

Special details