title: Crystal structure of di-aqua-bis-(7-di-ethyl-amino-3-formyl-2-oxo-2H-chromen-4-olato-κ(2) O (3),O (4))zinc(II) dimethyl sulfoxide disolvate.
abstract: The structure of the title coordination complex, [Zn(C14H14NO4)2(H2O)2]·2C2H6OS, shows that the Zn(II) cation adopts an octa-hedral geometry and lies on an inversion center. Two organic ligands occupy the equatorial positions of the coordination sphere, forming a chelate ring motif via the O atom on the formyl group and another O atom of the carbonyl group (a pseudo-β-diketone motif). Two water mol-ecules occupy the remaining coordination sites of the Zn(II) cation in the axial positions. The water mol-ecules are each hydrogen bonded to a single dimethyl sulfoxide mol-ecule that has been entrapped in the crystal lattice.
authors.affiliation: Department of Chemistry and Biochemistry, University of Southern Mississippi, Hattiesburg, Mississippi 39406, USA.
authors.forename: Aaron B
authors.initials: AB
authors.lastname: Davis
authors.affiliation: Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, USA.
authors.forename: Frank R
authors.initials: FR
authors.lastname: Fronczek
authors.affiliation: Department of Chemistry and Biochemistry, University of Southern Mississippi, Hattiesburg, Mississippi 39406, USA.
authors.forename: Karl J
authors.initials: KJ
authors.lastname: Wallace
keywords: DMSO solvate; coumarin ligands; crystal structure; hydrogen bonding; zinc complex