Cyclooctenyl complexes of palladium(II) with multidentate N-heterocycles |
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Authors: | Shivakumaraiah D'souza Joyce Q. Reddy Yerrappagari C. Gayathri Virupaiah Nanje Gowda Nadur M. |
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Affiliation: | (1) Department of Chemistry, Siddaganga Institute of Technology, Tumkur, 572 103, India;(2) Department of Studies in Chemistry, Bangalore University, Central College Campus, Bangalore, 560 001, India |
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Abstract: | [Pd(cod)(cotl)]ClO4 (cod = 1,5-cyclooctadiene, cotl = cyclooctenyl, C8H13–) undergoes substitutions with multidentate N-heterocycles: 1,3-bis(benzimidazolyl)benzene (L1), 1,3-bis(1-methylbenzimidazol-2-yl)benzene (L2), 2,6-bis(benzimidazolyl)pyridine (L3) and 2,6-bis(1-methylbenzimidazol-2-yl)pyridine (L4) to yield mono/binuclear complexes: [Pd(cotl)(L1)(OClO3)], [Pd(cotl)(L)]ClO4 (L = L2 or L3) and [Pd(cotl)2(L4)](ClO4)2. Dihalobridged binuclear complexes [PdX(cotl)]2 (X = Cl or Br) undergo halogen bridge cleavages with the multidentate N-heterocycles to form binuclear complexes of the type [PdX(cotl)2L] (X = Cl or Br; L = L1, L2, L3 or L4). The complexes were characterized by elemental analyses, 1H-, 13C-n.m.r., i.r., far-i.r. and FAB-mass spectral studies. |
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