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

Siew San Tan, Aisha A. Al-Abbasi, Mohamed Ibrahim Mohamed Tahir, Mohammad Kassim

Research output: Contribution to journalArticle

20 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)287-294
Number of pages8
JournalPolyhedron
Volume68
DOIs
Publication statusPublished - 28 Jan 2014

Fingerprint

Thiourea
Thioureas
thioureas
Cobalt
cobalt
synthesis
Ligands
Magnetic susceptibility
Phenylthiourea
ligands
acetates
X ray crystallography
magnetic permeability
Mass spectrometry
Methanol
chelates
Acetates
crystallography
Nuclear magnetic resonance
Infrared radiation

Keywords

  • Benzoylthiourea
  • Bidentate-chelate
  • Cobalt(III)
  • One-pot-reaction
  • Thiourea
  • X-ray crystallography

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Materials Chemistry
  • Physical and Theoretical Chemistry

Cite this

Synthesis, structure and spectroscopic properties of cobalt(III) complexes with 1-benzoyl-(3,3-disubstituted)thiourea. / Tan, Siew San; Al-Abbasi, Aisha A.; Mohamed Tahir, Mohamed Ibrahim; Kassim, Mohammad.

In: Polyhedron, Vol. 68, 28.01.2014, p. 287-294.

Research output: Contribution to journalArticle

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