The synthesis and characterization of several hexa-coordinated ruthenium(III) complexes of the type [RuCl(PPh 3 ) 2 (L)] (L = dibasic tridentate ligand derived by the condensation of salicylaldehyde/ovanillin with o-aminophenol/o-aminothiophenol) are reported. IR, electronic, EPR spectral data and redox bahaviour of the complexes are discussed. An octahedral geometry has been tentatively proposed for all the complexes. The new complexes were found to be effective catalysts for the oxidation of benzyl alcohol and cyclohexanol to benzaldehyde and cyclohexanone respectively using N-methylmorpholine-N-oxide as a co-oxidant.

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Polyester fabrics are treated in low-temperature plasma. Plasma-treated fabrics displayed a substantial variation in the surface structure. Plasma treated fabrics are grafted by using maleic acid (Mac). X-ray diffraction patterns are used to estimate crystallinity of polyester fabrics. From FTIR studies, it is observed that (-OH) group is induced in case of grafted polyester fabric that enhanced the wettability of the fabric. The enhancement of dye uptake in polyester fabrics was evaluated with the help of the capillary method and this showed an extensive wettability and dyeability. Scanning electron microscopy (SEM) was used to study the morphological characterizations of the treated fibers, which were found to be evident.

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