Tetra­aqua­tetra­kis{μ3-3,3′-[(E,E)-ethane-1,2-diylbis(nitrilo­methyl­idyne)]benzene-1,2-diolato}octa­zinc(II) N,N-dimethyl­formamide hexa­solvate

摘要

The asymmetric unit of the title compound [Zn8(C16H12N2O4)4(H2O)4]·6C3H7NO, consists of eight Zn^II cations, four tetra­valent anionic ligands, L ⁴⁻ (L ⁴⁻ = 3,3′-(1E,1′E)-(ethane-1,2-diylbis(azan-1-yl-1-yl­idene))bis­(methan-1-yl-1-yl­idene)dibenzene-1,2-bis­(olate), four coordinated water mol­ecules and six N,N-dimethyl­formamide solvate mol­ecules. The coordination complex comprises an octa­nuclear Zn^II unit with its Zn^II centers coordinated in two discrete distorted square-pyramidal geometries. Four Zn^II atoms each coordinate to two nitro­gen atoms and two phenolate oxygen atoms from an individual L ⁴⁻ ligand and one coordinated water mol­ecule. The other four Zn^II atoms each bind to five phenolate oxygen atoms from three different L ⁴⁻ ligands. In the crystal structure, the Zn^II complex unit, coordinated water mol­ecules and dimethyl­formamide solvate mol­ecules are linked via O—H⋯O and C—H⋯O hydrogen bonds. Mol­ecules are connected by additional inter­molecular O—H⋯O and C—H⋯O hydrogen bonds, forming an extensive three dimensional framework.