• Design and synthesis of multidentate ligands via metal promoted C-N bond formation processes and their coordination chemistry

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      https://www.ias.ac.in/article/fulltext/jcsc/114/04/0339-0346

    • Keywords

       

      Metal promoted reactions; aromatic ring amination; newbis chelating; N,N,N-donors; transition metal chemistry

    • Abstract

       

      This presentation reports some novel examples of organic ring amination reactions via metal mediation. The organic transformations are highly regioselective and can be controlled by the proper selection of the mediator complex. The two isomeric organic ligands viz. HL1 and HL2 were isolated in their pure states by the removal of the metal ions. These were fully characterized. The ligand HL1 has lowpKa, 8.5. Upon deprotonation, it behaves as a potentialbis chelating N,N,N-donors. The coordination chemistry of the HL1 ligand involving some 3d-metal ions is described. Two unusual low-spin complexes of manganese(II) and iron(III) are reported. The ferric complex displayed a rhombic EPR while, the corresponding manganese compound showed a complex pattern due to hyperfine coupling. All the complexes displayed large number of redox responses. A brief mention about the future projection of this work is noted.

    • Author Affiliations

       

      Kunal K Kamar1 Amrita Saha1 Sreebrata Goswami1

      1. Department of Inorganic, Indian Association for the Cultivation of Science, Kolkata - 700 032, India
    • Dates

       
  • Journal of Chemical Sciences | News

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