Evaluation of oxine-type ligand coordination to zirconium (IV)
Journal of the Southern African Institute of Mining and Metallurgy
Department of Chemistry, University of Free State, South Africa
[Zr(C9H6NO)4]·(HCON(CH 3)2)·(H2O), where (C9H 6NO) = 8-hydroxy quinoline (oxH), was synthesized and characterized. This tetrakiscoordinated zirconium complex crystallized in the triclinic crystal system (Pi, Z=2) along with water and N,N'-dimethylformamide (DMF) solvate in the asymmetric unit. The metal atom is surrounded by four N,O-donating bidentate ox-ligands that are arranged around the metal centre to give a square antiprismatic coordination polyhedron with a small distortion towards a dodecahedral geometry. Crystal packing is stabilized by intermolecular interactions of adjacent oxine ring systems in neighbouring molecules, as well as hydrogen bonding of the aqua and DMF solvate molecules, linking the molecular entities into a supramolecular three-dimensional network. © The Southern African Institute of Mining and Metallurgy, 2013.
Coordination polyhedra; Intermolecular interactions; Ligand coordination; Molecular entities; Quinolinato; Tetrakis; Three-dimensional networks; Zirconium complexes; Complex networks; Hydrogen bonds; Ligands; Molecules; Organic solvents; Zirconium; Zirconium compounds