Metal supported macrocycles: Synthesis and characterization of some new 1,3-bis(benzimidazol-1-yl-methylene)benzene and 1,4-bis(benzimidazol-1-yl-methylene)benzene-bridged metal(II) cation complexes

Two new non-chelating bidentate ligands 1,3-bis(benzimidazol-1-yl-methylene)benzene, hereafter 1,3-BIX, and 1,4-bis[benzimidazol-1-yl-methylene]benzene, hereafter 1,4-BIX, have been synthesized and their complexes with M II salts (M = Co, Ni, Cu, Zn, Pd and Pt) have been prepared and characterized u...

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Bibliographic Details
Published in:Polyhedron 1997-01, Vol.16 (8), p.1315-1322
Main Authors: Chawla, Sukhvinder K., Gill, Beerpal K.
Format: Article
Language:English
Subjects:
macrocycle
metal supported
non-chelating
supramolecule
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Summary:Two new non-chelating bidentate ligands 1,3-bis(benzimidazol-1-yl-methylene)benzene, hereafter 1,3-BIX, and 1,4-bis[benzimidazol-1-yl-methylene]benzene, hereafter 1,4-BIX, have been synthesized and their complexes with M II salts (M = Co, Ni, Cu, Zn, Pd and Pt) have been prepared and characterized using elemental analysis, magnetic moment measurement, IR, UV-vis and 13C NMR and FAB-MS (in some cases) studies. Cu II, Pd II and Pt II metal ions yield dinuclear square-planar complexes viz. [enM(BIX) 2X 4 (en = 1,2]) diaminoethane; M = Pd or Pt, X = NO 3; M = Cu, X = ClO 4, BIX = 1,3- or 1,4-BIX). Co II chloride forms dimeric tetrahedral [Co(BIX)Cl 2l 2, whereas Ni II and Zn II chlorides yield polymeric [M(BIX)Cl 2] n complexes.
ISSN:0277-5387
DOI:10.1016/S0277-5387(96)00407-X