catena-Poly[[[diaquacopper(II)]-μ-quinoline-2,3-dicarboxylato-κ³N,O²:O³] monohydrate]

Abstract

Key indicators: single-crystal X-ray study; T = 293 K; mean (C-C) = 0.004 Å; R factor = 0.037; wR factor = 0.104; data-to-parameter ratio = 13.5.In the title compound, {[Cu(C 11 H 5 NO 4 )(H 2 O) 2 ]ÁH 2 O} n , the Cu II ion is five-coordinated by two O atoms and one N atom of two symmetry-related quinoline-2,3-dicarboxylate ligands, and two water molecules. The water molecules occupy basal and apical positions of the square-pyramidal coordination polyhedron. Each quinoline-2,3-dicarboxylate dianion bridges two adjacent Cu II ions, forming a polymeric chain along [010]. The chains are further connected via O-HÁ Á ÁO hydrogenbonding interactions and quinoline ring -interactions [centroid-centroid distance = 3.725 (4) Å ], generating a threedimensional structure. Lattice water molecules participate in the crystal structure via O-HÁ Á ÁO hydrogen bonds. Related literature

Poly[[diaquabis{μ-4-[6-(4-carboxyphenyl)-4,4′-bipyridin-2-yl]benzoato-κ2O:N1′}copper(II)] dimethylformamide tetrasolvate]

“…For the design of metal-organic coordination polymers, see: Ge & Song (2012); Herm et al (2011); Liu et al (2010); Wang et al (2010). For a related structure, see: Xia et al (2012).…”

“…1, the Cu II ion is six-coordinated by two N atoms from two bpydbH ligands, two deprotonated carboxylate O atoms from two other symmetry-related bpydbH ligands and two aqua ligands, furnishing a slightly distorted octahedral geometry. The bond distances and angles are in a normal range (Xia et al, 2012). The Cu nodes are extended by the bridging bpydbH linkers into a layer parallel to (101) (…”

A Series of Novel 3D Coordination Polymers Based on the Quinoline-2,4-dicarboxylate Building Block and Lanthanide(III) Ions—Temperature Dependence Investigations

“…Yet, the properties of quinoline-2,4-dicarboxylic acid as a multidentate N,O-donor ligand are not really well recognized in the construction of discrete metal complexes and coordination polymers. To best of our knowledge, only a few examples of crystal structures of metal complexes are known that contain analogous of quinoline-2,4-dicarboxylic acid [23][24][25]. Most of the reported complexes were built up from transition metals and N-donor auxiliary ligands such as 1,10-phenanthroline; 4,4'-bipyridine, or 2,2'-bipyridine [25][26][27][28][29][30][31][32].…”