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Synthesis, structure and spectroscopic properties of cobalt(III) complexes with 1-benzoyl-(3,3-disubstituted)thiourea


Citation

Tan, Siew San and Al-Abbasi, Aisha A. and Mohamed Tahir, Mohamed Ibrahim and Kassim, Mohammad (2014) Synthesis, structure and spectroscopic properties of cobalt(III) complexes with 1-benzoyl-(3,3-disubstituted)thiourea. Polyhedron, 68. pp. 287-294. ISSN 0277-5387; ESSN: 1873-3719

Abstract

Reactions of Co(II) acetate with 1-benzoyl-(3-methyl-3-R)thiourea (R = ethyl, propyl, cyclohexyl and phenyl) and 1-benzoyl-(3-ethyl-3-benzyl)thiourea ligands, herein refer to as 1-benzoyl-(3,3-disubstituted)thiourea, derived from secondary alkyl- and arylamines gave [tris(1-benzoyl-(3,3-disubstituted)thiourea)cobalt(III)] complexes. The neutral cobalt(III) complexes were afforded through a one-pot reaction between a deprotonated 1-benzoyl-(3,3-disubstituted)thiourea ligands with cobalt(II) acetate with a 1:3 ratio in methanol. These complexes were characterized on the basis of elemental analysis, mass spectrometry, magnetic susceptibility measurement, X-ray crystallography and spectroscopic techniques namely infrared, UV–Vis and nuclear magnetic resonance. Based on the magnetic susceptibility and spectroscopic data as well as X-ray crystallographic structure of the octahedron [tris(1-benzoyl-(3-methyl-3-phenyl)thiourea)cobalt(III)] complex, it can be concluded that the ligands behave as bidentate O,S chelate.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
DOI Number: https://doi.org/10.1016/j.poly.2013.11.005
Publisher: Elsevier
Keywords: Benzoylthiourea; Cobalt(III); X-ray crystallography; Bidentate-chelate; Thiourea; One-pot-reaction
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 18 Jan 2016 01:29
Last Modified: 27 Nov 2019 01:03
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.poly.2013.11.005
URI: http://psasir.upm.edu.my/id/eprint/35586
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