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      https://www.ias.ac.in/article/fulltext/jcsc/130/02/0019

    • Keywords

       

      Cyanide-bridged complex; heterobimetallic complex; crystal structure; magnetic property

    • Abstract

       

      Three new heterobimetallic cyanide-bridged complexes, {[Ni(L1)][Ag(CN)2]}[Ag(CN)2] ·2H2O (2), {[Mn(L1)][Ag(CN)2]} · 1.5H2O (3) and {[Mn(L3)(H2O)]2[Ag(CN)2]}ClO4 · 2H2O (4) (L1 =2,7,12-trimethyl-3,7,11,17-tetraazabicyclo[11.3.1]heptadeca-1(17),13,15-triene; L2 = N,N’-1,3-propylenebis(5-chlorosalicylideneiminate); L3 = N,N’-1,2-propylene-bis(5-bromosalicylideneiminate)), have been assembled using for the first time a new polyaza macrocycle nickel(II) compound [Ni(L1)](ClO4)2(1), or Schiff-base manganese(III) compounds and K[Ag(CN)2]. Single crystal X-ray diffraction analysis reveals that complexes 2 and 3 can be characterized as one-dimensional cationic and neutral single chain structure, respectively. Complex 3 forms a three-dimensional network via weak inter-chainAg…Aginteractions. Complex 4 belongs to a cyanide-bridged bimetallic sandwich-like cationic trinuclear structure containing Mn2Ag core with free ClO-4 as a counter anion, indicating that the Schiff-base ligand has an obvious influence on the structure of the cyanide-bridged complexes formed. Investigation of the magnetic susceptibilities of the cyanide-bridged Ag-Ni(II)/Mn(III) complexes showed the weak anti-ferromagnetic interaction between neighboring paramagnetic Ni(II) or Mn(III) ions bridged by the long NC-Ag-CN unit. From the best-fit of the magnetic susceptibility data of complexes 2 and 4 the magnetic coupling constant was determined to be J = −0.51 and −0.78 cm-1,respectively.

    • Author Affiliations

       

      JINGWEN SHI1 WENLONG LAN1 YIN ZHOU1 CHONGCHONG XUE1 QINGYUN LIU2 DAOPENG ZHANG1

      1. College of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, People’s Republic of China
      2. College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266510, People’s Republic of China
    • Dates

       
  • Journal of Chemical Sciences | News

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