Haroon Rashid Boked

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.

Fe (III) and Cu (II) metal complexes of Schiff base derived from ethylenediamine, succinic acid and formaldehyd. The newly synthesized Schiff base complexes were characterized by elemental analysis, Melting point, conductivity, IR and UV-VIS spectral methods. The absorption spectrum of CrL displayed only one low energy transition centered at 488 nm, which was attributed to 2A1g→2Eg transition indicating its square planer geometry.

Catalysis is an area of research which still continues to be a premier area of chemistry. It plays a key role in modern chemical technology. 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. However, it does have drawbacks it has limited stability in aqueous especially basic conditions, and it cannot easily be formed into membranes or into other forms which could be attached to novel reactors for use in intensive processing applications.

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.