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New quadridentate ONNS ligands and their metal complexes

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Summary

Two new quadridentate sulphur-nitrogen chelating agents have been prepared and characterized. These ligands yield stable complexes of general formulae, M(ONNS)·xH2O (M=Ni, Cu, Zn, Cd, Pd and Pt; ONNS−2=ligand dianion; x=0, 1 or 2) and M(ONNS)X (M=Co or Fe; X=Cl or AcO). The nicke(II) complexes are diamagnetic and squareplanar. Based on magnetic and spectral data a square-planar structure is also assigned to the copper(II) complexes. The iron(III) complexes, Fe(ONNS)Cl are high-spin and five-coordinate. Magnetic and spectral evidence support an octahedral structure for the cobalt(III) complex, Co(ONNS)OAc.

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Author notes

  1. Mohammed Akbar Ali

    Present address: Department of Chemistry, University of Brunei Darussalam, Bandar Seri Begawan 3186, Brunei Darussalam

Authors and Affiliations

  1. Department of Chemistry, University of Chitagong, Bangladesh

    Mohammed Nazimuddin & Mohammed Akbar Ali

  2. Department of Chemistry, Laurentian University, P3E 2C6, Sudbury, Ontario, Canada

    Frank E. Smith

Authors
  1. Mohammed Nazimuddin
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  2. Mohammed Akbar Ali
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  3. Frank E. Smith
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Nazimuddin, M., Ali, M.A. & Smith, F.E. New quadridentate ONNS ligands and their metal complexes. Transition Met Chem 16, 528–531 (1991). https://doi.org/10.1007/BF01024324

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  • DOI: https://doi.org/10.1007/BF01024324

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