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Synthesis, Characterization and Antibacterial Activity of Triorganotin(IV) Complexes of 4-Methylphenol

100%

Sharma N. , Kumar V. , Thakur M. , Kumari M. , Chaudhry S. C.

tom Vol. 83, nr 12

2051--2065

The triorganotin(IV) com plex of com po si tion Ph3Sn(OArMe-4) has been synthesized in good yields by the reaction of Ph3SnCl with Me3SiOArMe-4/NaOArMe-4, while complexes of composition Me3Sn(OArMe-4) and n-Bu3Sn(OArMe-4) (where -OArMe-4 = -OC6H4CH3-4) have been obtained from the reaction of Me3SnCl and n-Bu3SnCl with 4-methylphenol in the presence of triethylamine in carbon tetrachloride. The complexes have been characterized by elemental analyses, molar conductance measurements, molecular weight determin tion and IR, 1H and 13C NMR and mass spectral studies. Thermal behaviour of the complexes has been studied by TG and DTA techniques. The organotin(IV) complexes have also been screened for their antibacterial properties and are found to exhibit appreciable activity. The reactions of the complexes with 2-, 3-, 4-cyanopyridines yielded 1:1 adducts as confirmed by physicochemical and IR spectral data.

Synthesis and characterization of Zn(II), Cd(II) and Hg(II) complexes of isonicotinoyl hydrazone derived from orthohydroxybenzeneazoethylacetoacetate

88%

Kashar T. I. , El-Tabl A. S. , El-Bahnasawy R. M.

tom Vol. 72, nr 9

2037-2044

Mononuclear and binuclear Zn(II), Cd(II) and Hg(II) complexes of orthohydroxybenzeneazoethylacetoacetate isonicotinoyl hydrazone (H3L), have been synthesized and characterized by elemental analyses, IR, (1)H NMR and VIS-UV spectra, conductance and thermal analyses. The ligand behaves as tetradentate in mononuclear complexes and hexadentate in binuclear complexes. The molar conductance of the complexes has been discussed.