A Co(III) complex with a tridentate amine-imine-oxime ligand from 1,2,3,4-tetrahydroquinazoline: Synthesis, crystal structure, spectroscopic and thermal characterization
Date
2009
Authors
Çolak, Alper Tolga
Hökelek, Tuncer
Çaylak, Nagihan
Journal Title
Journal ISSN
Volume Title
Publisher
Taylor & Francis
Abstract
A cobalt(III) complex [Co(L)2]Cl PPO H2O (1) (HL = 1-(2-aminobenzylimino)-1-phenyl-propan-2-one oxime, PPO = 1-phenyl-1,2-propanedione-2-oxime) has been synthesized and characterized by elemental analyses, spectral, thermal, magnetic and molar conductance measurements and single crystal X-ray diffraction. It crystallizes in the monoclinic crystal system, space group P21/c. Complex 1 consists of one uncoordinated water, one 1-phenyl-1,2-propanedione-2-oxime molecule, one bis[1-(2-aminobenzylimino)-1-phenyl-propan-2-one oxime]cobalt(III) cation and one uncoordinated chloride. The coordination geometry around Co is slightly distorted octahedral, completed with six nitrogens of two L- ligands. The oxime moieties have E configurations. In the crystal structure, intramolecular O-HCl and N-HO and intermolecular N-HO, O-HCl and N-HCl hydrogen bonds link the molecules into chains parallel to the c axis; hydrogen-bonded PPO molecules fill the spaces between the chains and stabilization of the structure.
Description
Keywords
1-Phenyl-1,2-propanedione-2-oxime, 2-Aminobenzylamine, Amine-imine-oxime, Cobalt(III), Transition-metal-complexes, Nickel(II), Cobalt(II), Dioxime, Chemistry
Citation
Çolak, A. T. vd. (2009). "A Co(III) complex with a tridentate amine-imine-oxime ligand from 1,2,3,4-tetrahydroquinazoline: Synthesis, crystal structure, spectroscopic and thermal characterization". Journal of Coordination Chemistry, 62(6), 1005-1014.