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Synthesis, Physico-chemical and Spectroscopic Investigations of Sodium Dihydrobis(1,2,3-benzotriazolyl)borate Ligand and its Transition Metal Complexes
Turkish Journal of Chemistry (2007)
  • Mohammad Mansoob Khan, Dr
  • AMU, AMU
  • M. M. Rahman
  • Y. B. Hahn
Abstract
The title ligand, sodium dihydrobis(1,2,3-benzotriazolyl) borate, Na[H2B(BTz)2],was synthesized by refluxing 1 mole of sodium borohydride with 2 moles of 1,2,3- benzotriazole in toluene. The ligand shows ample reactivity towards Cr(III), Mn(II), Fe(III), Fe(II), Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Hg(II) metal ions and forms stable complexes. The ligand and its metal complexes were characterized by physico-hemical and spectroscopic techniques. All the complexes of divalent metal ions are tetrahedral except for Cu(II), which has been proposed to have a square-planar geometry. The complexes of Cr(III) and Fe(III) appear to have an octahedralge ometry. The magnitude of molar conductance of 10−3 M solution indicates that all the complexes are non-electrolytic.
Keywords
  • Dihydrobis(1,
  • 2,
  • 3-benzotriazolyl)borate ligand,
  • metal complexes,
  • spectral studies,
  • electronic spectra.
Disciplines
Publication Date
2007
Citation Information
Mohammad Mansoob Khan, AMU, M. M. Rahman and Y. B. Hahn. "Synthesis, Physico-chemical and Spectroscopic Investigations of Sodium Dihydrobis(1,2,3-benzotriazolyl)borate Ligand and its Transition Metal Complexes" Turkish Journal of Chemistry Vol. 31 (2007)
Available at: http://works.bepress.com/mmansoob_khan/4/