{N'-[1-(2-Pyrid-yl)ethyl-idene-?N]benzo-hydrazidato-?N',O}{N'-[1-(2-pyrid-yl)ethyl-idene-?N]benzohydrazide-?N',O}copper(II) trichloro-acetate.

ABSTRACT: In the title complex, [Cu(C(14)H(13)N(3)O)(C(14)H(12)N(3)O)](CCl(3)COO), the central Cu(II) ion exhibits a distorted octa-hedral geometry with the two ligands coordinating in an meridional format. The N(4)O(2) ligand environment is defined by two benzoyl O atoms, two pyridyl N atoms and imino N atoms. As evidenced by the bond lengths, the two benzohydrazone ligands exist in distinctively different forms, one of them as a regular neutral ligand and the other as an anionic enolate arising from deprotonation. The much longer Cu-O bond and longer Cu-N bond lengths in the neutral benzohydrazone ligand imply weak ligation in comparison with the anionic enolate form. The acute angles of the five-membered rings cause a significant deviation from a regular octa-hedral geometry.

SUBMITTER: Datta A 

PROVIDER: S-EPMC3201462 | biostudies-other | 2011 Oct

REPOSITORIES: biostudies-other