• Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/133/0007

    • Keywords

       

      N-pendent dimethyl derivative; Copper(II); nickel(II) and zinc(II) complexes; Spectroscopicstudies; Addition and substitution reactions; Antimicrobial studies

    • Abstract

       

      Interaction of CH3I with L (3,10-C-meso-Meg[14]diene) in the ratio of 4:1 in ethanolic solution at room temperature yielded N-pendent dimethyl derivative [(L-2H)(–CH3)2] denoted by LZ. Interaction of nickel(II) acetate tetrahydrate with LZ and subsequent addition of NaClO4.6H2O produced square planar orange-yellow product, [NiLZ](ClO4)2. The reaction of copper(II) perchlorate hexahydrate with LZ afforded four coordinated square planar red [CuLZ](ClO4)2. However, on the reaction of zinc(II) nitrate hexahydrate with LZ furnished white six coordinated two distereoisomeric complexes [ZnLZa(NO3)2] and [ZnLZb(NO3)2].Axial addition reactions on four coordinated square planar [NiLZ](ClO4)2 with KX (X= SCN, NO3, Cl, Br or I) and NaNO2 resulted in six coordinated octahedral and square pyramidal axial addition products, such as [NiLZ(NCS)2], [NiLZ(NO3)(ClO4)], [NiLZCl(ClO4)], [NiLZBr2], [NiLZI2] and [NiLz(NO2)](ClO4), respectively. However axial substitution reactions on [ZnLZa(NO3)2] with KY (Y= SCN, Cl or Br) and NaNO2 produced six coordinated octahedral axial substitution products [ZnLZa(NCS)2], [ZnLZaCl2], [ZnLZaBr2] and [ZnLZa(NO2)2]. Similarly, the axial substitution reactions on [ZnLZb(NO3)2] with KI and NaClO4.6H2O resulted in six coordinated octahedral axial substitution products [ZnLZbI2] and [ZnLZb(H2O)2](ClO4)2, respectively. The compounds have been characterized by analytical, spectroscopic, magnetochemical and conductivity data. The antimicrobial activities of the new ligand and its complexes have been tested against different micro pathogens..

    • Graphical Abstract

       

      Nickel(II), copper(II) and zinc(II) complexes with an N-pendent dimethyl derivative ligand LZ of an octamethyl tetraazmacrocyclic ligand were prepared. The compounds were characterized by different analytical and spectroscopic methods. Antibacterial and antifungal activities of these compounds against some bacteria and fungi were also investigated.

    • Author Affiliations

       

      SUMAN KANTI DAS GUPTA1 SASWATA RABI1 2 DEPONKOR GHOSH1 FARHANA YASMIN1 BENU KUMAR DEY1 SUJAN DEY3 TAPASHI GHOSH ROY1

      1. Department of Chemistry, University of Chittagong, Chattogram 4331, Bangladesh
      2. Department of Chemistry, Chittagong University of Engineering and Technology, Chattogram 4349,Bangladesh
      3. Department of Microbiology, University of Chittagong, Chattogram 4331, Bangladesh
    • Dates

       
  • Journal of Chemical Sciences | News

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2021-2022 Indian Academy of Sciences, Bengaluru.