• J P Tandon

      Articles written in Journal of Chemical Sciences

    • Spectral studies of the newly synthesized azomethine derivatives of zirconium(IV)

      R K Sharma R V Singh J P Tandon

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      Equimolar and bimolar reactions of zirconium isopropoxide with bibasic tridentate azomethine (AZH2) having the donor system ONO have been carried out and derivatives of the type Zr(OPr1)2(AZ) and Zr(AZ)2 [Where AZ2− is the anion of the azomethine molecule] have been isolated. The labile nature of the isopropoxy groups in 1∶1 derivatives has been shown by carrying out exchange reactions with equimolar amount of 2-methylpentane-2,4-diol. All the newly synthesized derivatives have been characterized on the basis of elemental analysis, conductance measurements, molecular weight determinations and infrared, ultraviolet, visible and proton magnetic resonance spectral studies.

    • Some new tin(II) complexes of Schiff bases derived from S-benzyl-dithiocarbazate

      Anil Varshney J P Tandon

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      Some new derivatives of tin(II) have been synthesised by the reactions of anhydrous tin(II) chloride with biologically active monofunctional bidentate and bifunctional tridentate thio-Schiff bases in oxygen-free nitrogen atmosphere using tetrahydrofuran as the reaction medium. The ligands used in these studies are the condensation products of S-benzyl dithiocarbazate with various aldehydes and ketones. An attempt has been made to probe their structures by elemental analyses, molecular weight determination, conductivity measurement anduv, ir and1Hnmr spectral studies.

    • Studies on some organotin(IV) complexes of azomethines derived from sulphadrugs

      Anil Varshney J P Tandon

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      Equimolar reactions of Bu2SnO and Ph2SnO with azomethines derived by the condensation of salicyladehyde with some well known sulphadrugsviz. sulphathiazole, sulphaphenazole, sulphadiazine, sulphaguanidine and 2-(p-aminobenzene sulphonamido)-4,5-dimethyl oxazole yield a new series of organotin(IV) complexes. The infrared and proton magnetic resonance spectral studies indicate coordination of phenolic oxygen and azomethine and secondary amino nitrogens providing a five coordinated environment at the tin atom.

    • Synthesis and characterization of adducts of stannous chloride with schiff bases

      Anil Varshney J P Tandon

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      Some new adducts of tin(II) have been synthesized by the reaction of anhydrous stannous chloride with monofunctional bidentate and bifunctional tetradentate Schiff bases in an oxygen-free nitrogen atmosphere using tetrahydrofuran as the reaction medium. An attempt has been made to probe their structures by elemental analyses, molecular weight determination, conductivity measurement, and IR1H NMR and Mössbauer spectra.

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