Crystal structure of diaquabis(7-diethylamino-3-formyl-2-oxo-2H-chromen-4-olato-κ2O3,O4)zinc(II) dimethyl sulfoxide disolvate

• Main Authors: Aaron B. Davis, Frank R. Fronczek, Karl J. Wallace
• Format: Article
• Language: English
• Published: International Union of Crystallography 2016-07-01
• Series: Acta Crystallographica Section E: Crystallographic Communications
• Subjects: crystal structure; zinc complex; coumarin ligands; hydrogen bonding; DMSO solvate
• Online Access: http://scripts.iucr.org/cgi-bin/paper?S2056989016009853

The structure of the title coordination complex, [Zn(C14H14NO4)2(H2O)2]·2C2H6OS, shows that the ZnII cation adopts an octahedral 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 molecules occupy the remaining coordination sites of the ZnII cation in the axial positions. The water molecules are each hydrogen bonded to a single dimethyl sulfoxide molecule that has been entrapped in the crystal lattice.