Fayaz Ahmad Bhat

There are a large number of important organic transformations such as oxidation, hydrogenation, hydroformylation, carbonylation, polymerization and various coupling reactions. The majority of these novel catalysts are based on silica, primarily since silica displays many advantageous properties excellent stability (chemical and thermal), high surface area, good accessibility, and organic groups can be robustly anchored to the surface, to provide catalytic centers. In this study we only discuss the catalytic application of schiff base metal complexes in the field of oxidation of phenol, benzyl alcohol, olefin etc

The Complexes of Mn (II) and Cr (II) with amino acid cysteine were synthesized and Characterized by elemental analysis, SEM, TGA. In these complexes the amino acid coordinated to 1:2 with metal and they exhibits octahedral geometry. The catalytic activity of these complexes was studied in olefins using eco-friendly nontoxic molecular oxygen as oxidant.

Ni (II) and Mn (II) metal complexes of Schiff base derived from ethylenediamine, succinic acid and formaldehyde. The newly synthesized Schiff base complexes were characterized by elemental analysis, Melting point, conductivity, IR and UV-VIS spectral methods. The complexes have been tested using for the catalytic oxidation of benzylacohol using ecofriendly molecular oxygen as catalyst. The results show that Nickel complex shows highest yield oxidation product as compared to Manganese at 35°C temperature, 90mg catalyst amount and 25 min. time.

A novel complex of quadridentate ligand modified chitosan was synthesized by sequential attachment of Isatin (1H-indole-2, 3-Dione) copper chloride dehydrate to chitosan. Synthesized catalyst was characterized by different techniques like FTIR, ESI-MS, and Powder X-ray diffraction method. The biological activity was done using diffusion disc technique. It was found that the complex shows excellent activity towards fungi and bacteria. The catalytic activity of this catalyst was tested for the oxidation of 2-butanol by varying the temperature of system as well as concentration of substrate and catalyst. Values of activation energy have been evaluated from the kinetic data.

Co(II), Fe (III) and Cu (II) metal complexes of Schiff base derived from ethylenediamine, succinic acid and formaldehyde. The newly synthesized Schiff base complexes were characterized by elemental analysis, Melting point, conductivity, IR and UV-VIS spectral methods. The complexes have been tested for their antimicrobial activity against bacteria and fungi. The anti- microbial activity was determined in Mueller Hinton media (M H Media).