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Molecules 2005, 10(6), 653-658; doi:10.3390/10060653
Article

Reactions of Cp2MCl2 (M=Ti or Zr) with Imine-Oxime Ligands. Formation of Metallacycles

* ,  and
Chemistry Department, D.D.U. Gorakhpur University, India
* Author to whom correspondence should be addressed.
Received: 18 November 2004 / Accepted: 24 December 2004 / Published: 14 July 2005
(This article belongs to the Special Issue Synthesis and Chemistry of Chiral Metallocenes)
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Abstract

The reactions of bis(cyclopentadienyl)titanium(IV)/zirconium(IV) dichloridewith a series of imine-oxime ligands (LH2), derived by condensing benzil-α-monoxime and2-phenylenediamine, 4-phenylenediamine, 4-methyl-2-phenylenediamine, 2,6-diamino-pyridine, have been studied in anhydrous tetrahydrofuran in the presence of base andmetallocycles of the [Cp2M(L)] (M=Ti or Zr) type have been isolated. Tentative structureshave been proposed for the products based on elemental analysis, electrical conductance andspectral (electronic, IR and 1H-NMR) data. Proton NMR spectra indicate that on the NMRtime scale there is rapid rotation of the cyclopentadienyl ring around the metal-ring axis at25oC. Studies were conducted to assess the growth inhibiting potential of the complexessynthesized and the ligands against various bacterial strains.
Keywords: Titanium(IV); zirconium(IV); imine-oxime; IR; PMR; antibacterial activity Titanium(IV); zirconium(IV); imine-oxime; IR; PMR; antibacterial activity
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Pandey, O.; Sengupta, S.; Tripathi, C. Reactions of Cp2MCl2 (M=Ti or Zr) with Imine-Oxime Ligands. Formation of Metallacycles. Molecules 2005, 10, 653-658.

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