Mono- and bis(cyclopentadienyl)titanium(IV)/zirconium(IV) derivatives withsubstituted mercapto triazines

The reactions of bis(cyclopentadienyl)titanium(IV)/zirconium(IV) dichloride and mono(cyclopentadienyl)titanium(IV) trichloride with 4-amino-3-mercapto -6-methyl-5-oxo-1,2,4-triazine and its schiff bases (derived from benzaldeh yde, 2-chlorobenzaldehyde, anisaldehyde, salicylaldehyde, 2-hydroxynapthald ehyde and 2-hydroxyacetophenone), have been studied in anhydrous tetrahydro furan or dichloromethane in the absence and presence of amine in different molar ratios. Tentative structures have been proposed for the products base d on elemental analyses, electrical conductance, magnetic moments and spect ral (electronic, infrared and H-1 NMR) data. Proton NMR spectra indicate th at there is rapid rotation of the cyclopentadienyl ring around the metal - ring axis an the NMR time scale at 20 degrees C.