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Synthesis and characterization of cobalt(II), nickel(II), copper(II) and zinc(II) complexes of 2-nitrobenzoic acid with methyl carbazate as ancillary ligand. Crystal structure of the copper(II) complex

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Abstract

Divalent metal complexes of general formula [M(2-nb)2(mc)2].2(2-nbH), where M = Co(II), Ni(II), Cu(II) or Zn(II), 2-nbH = 2-nitrobenzoic acid and mc = methyl carbazate (NH2NHCOOCH3), have been prepared and characterized by physicochemical and spectroscopic methods. Single-crystal X-ray study of the Cu(II) complex revealed that the molecule is centrosymmetric, with two N,O-chelating mc ligands in equatorial positions and a pair of monodentate 2-nb anions in the axial positions. The lattice 2-nbH molecules help to establish the packing of monomers through hydrogen-bonding interactions. Thermal stability and reactivity of the complexes were studied by TG–DTA. Emission studies show that these complexes are fluorescent.

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Authors and Affiliations

  1. Department of Chemistry, School of Chemical Sciences, Bharathiar University, Coimbatore, 641 046, India

    Ayyasami Kathiresan & Subbaiah Govindarajan

  2. Department of Chemistry, Thiruvalluvar University, Serkkadu, Vellore, 632 115, India

    Krishnan Srinivasan

  3. Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560 012, India

    Selvaraj Brinda & Munirathinam Nethaji

Authors
  1. Ayyasami Kathiresan
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  2. Krishnan Srinivasan
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  3. Selvaraj Brinda
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  4. Munirathinam Nethaji
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  5. Subbaiah Govindarajan
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Corresponding author

Correspondence to Subbaiah Govindarajan.

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Kathiresan, A., Srinivasan, K., Brinda, S. et al. Synthesis and characterization of cobalt(II), nickel(II), copper(II) and zinc(II) complexes of 2-nitrobenzoic acid with methyl carbazate as ancillary ligand. Crystal structure of the copper(II) complex. Transition Met Chem 37, 393–397 (2012). https://doi.org/10.1007/s11243-012-9601-8

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  • DOI: https://doi.org/10.1007/s11243-012-9601-8

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