Mono(cyclopentadienyl)titanium(IV) derivatives with heterocyclic thioketones

The reactions of mono(cyclopentadienyl)titanium(IV) trichloride with three important series of heterocyclic thioketones, viz., triazolinethiones 4-amino-, 4-benzylideneamino-, 4-furfurylideneamino-, and 4-salicylideneamino-5-trifluoromethyl-1,2,4-triazoline-3-thiones, thioxoquinazolones (3-methyl-, 3-phenyl-, and 3-(o-tolyl)-2-thioxo-4-quinazolones), and oxadiazolethiones (5-phenyl-, 5-(p-nitrophenyl), and 5-(p-chlorophenyl)-1,3,4-oxadiazole-2-thiones, have been studied in anhydrous dichloromethane. The reaction products have been characterized on the basis of elemental analyses, electrical conductance, magnetic susceptibility and spectral (electronic, infrared, and 1H NMR) data. Proton NMR spectra indicate that there is rapid rotation of the cyclopentadienyl ring around the metal ring axis on the NMR time scale at 28 °C.