• N K Kaushik

      Articles written in Journal of Chemical Sciences

    • Bis (η5-cyclopentadienyl/indenyl) N-aryl dithiocarbamato chloro oxotungsten(VI) complexes

      G S Sodhi H S Sangari N K Kaushik

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      Some bis(η5-cyclopentadienyl) N-aryl-ditbiocarbamato chloro oxotungsten (VI) complexes of the type (C5H5)2 WO (S2CNHR) Cl (R =o-, m-, p-tolyl and Ph) have been prepared by the reaction of stoichiometric amounts of bis (η5-cyclo-pentadienyl) oxotungsten(VI) dichloride with sodium salts of dithiocarbamic acids in refluxing tetrahydrofuran. The corresponding indenyl complexes of the type (C9H7)2WO (S2CNHR) Cl were similarly synthesised by refluxing equimolar quantities of bis (η5-indenyl) oxotungsten(VI) dichloride and sodium dithiocarbamate in tetrahydrofuran. Infrared spectral studies demonstrate that in these complexes dithiocarbamate ligands are bidentate. Electronic spectra, magnetic susceptibility and elemental analysis have also been carried out for the complexes.

    • Reactions of dichloro-bis(cyclopentadienyl)titanium(IV) with bidentate Schiff bases

      B Khera N K Kaushik

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      A series of Cp2Ti(SB)Cl complexes, whereSB is the anion of bidentate Schiff bases derived from salicylaldehyde and different primary aminesviz o-anisidine,m-anisidine,o-phenetidine,o-chloroaniline,m-chloroaniline,m-nitroaniline, α-naphthylamine and benzylamine, have been synthesised by the reaction of dichloro-bis(cyclopentadienyl) titanium(IV), Cp2TiCl2, and bidentate Schiff base (sbh) in a 1:1 molar ratio in refluxingthf in the presence of triethylamine. The new derivatives have been characterised on the basis of their elemental analyses, conductance measurements and spectral (IR,1Hnmr and electronic) studies

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