Reactions of Cp2MCl2 (M=Ti or Zr) with imine-oxime ligands. Formation of metallacycles

Om Prakash Pandey, Soumitra Kumar Sengupta, Chandra Mohan Tripathi

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

The reactions of bis(cyclopentadienyl)titanium(IV)/zirconium(IV) dichloride with a series of imine-oxime ligands (LH2), derived by condensing benzil-α-monoxime and 2-phenylenediamine, 4-phenylenediamine, 4-methyl-2-phenylenediamine, 2,6-diamino-pyridine, have been studied in anhydrous tetrahydrofuran in the presence of base and metallocycles of the [Cp2M(L)] (M=Ti or Zr) type have been isolated. Tentative structures have been proposed for the products based on elemental analysis, electrical conductance and spectral (electronic, IR and 1H-NMR) data. Proton NMR spectra indicate that on the NMR time scale there is rapid rotation of the cyclopentadienyl ring around the metal-ring axis at 25°C. Studies were conducted to assess the growth inhibiting potential of the complexes synthesized and the ligands against various bacterial strains.

Original languageEnglish
Pages (from-to)653-658
Number of pages6
JournalMolecules
Volume10
Issue number6
DOIs
StatePublished - Jun 2005
Externally publishedYes

Keywords

  • Antibacterial activity
  • IR
  • Imine-oxime
  • PMR
  • Titanium(IV)
  • Zirconium(IV)

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