Activation of dioxygen molecules on dinuclear metal centersProceedings / Indian Academy of Sciences - Tập 111 - Trang 413-424 - 1999
Yoshihiko Moro-Oka
Activation of dioxygen molecules on transition metal centers, especially dinuclear metal centers was systematically investigated using hydrotris(3,5-dialkylpyrazolyl)borate ligands from both organometallic and bioinorganic viewpoints. Physicochemical data and X-ray crystallography of synthesized dicopper-O2 complexes revealed aμ-η
2:η
2 coordination mode which was proposed as the most probable mod...... hiện toàn bộ
Polystyrene supportedt-butyl chromates: Effect of the degree of crosslinking on reactivityProceedings / Indian Academy of Sciences - Tập 110 - Trang 499-506 - 1998
K Geethakumari, K Sreekumar
Polystyrene supportedt-butyl chromate reagents were prepared using divinylbenzene as the crosslinking agent. The extent of crosslinking was varied from 2 to 20% (2, 5, 10, 15 and 20%). These polystyrene systems appeared to be amenable to structural variations for studying the effect of the nature and extent of crosslinking on the reactivity of the attached functional groups. Polystyrene supportedt...... hiện toàn bộ
M/TiO2 anodes for photoassisted electrooxidationProceedings / Indian Academy of Sciences - Tập 110 - Trang 239-250 - 1998
O Enea, D Duprez
The semiconducting ceramics deposited on a porous metallic film acting both as catalyst and electronic collector present large photocurrents and considerably enhanced electrooxidation currents when illuminated in the presence of small amounts of alcohol vapors. In the present research, several types of thin, “nanocrystalline” TiO2 ceramics have been deposited onto a porous, thin metallic (Au) film...... hiện toàn bộ
Synthesis and characterization of the complexes of some transition metals with 2-acetyl pyridine (N-benzoyl) glycyl hydrazoneProceedings / Indian Academy of Sciences - Tập 111 - Trang 615-626 - 1999
R K Lonibala, T R Rao
Complexes of Mn(II), Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Hg(II) with 2-acetyl pyridine (N-benzoyl) glycyl hydrazone(2-ApBzGH) have been synthesized and characterized by elemental analyses, molar conductances, magnetic susceptibility, IR, electronic, ESR,1H,13C and113Cd NMR spectral and X-ray diffraction studies. IR and NMR data suggest the tridentate nature of the ligand coordinating as a n...... hiện toàn bộ
Oxidation of methylpentoses by sodium N-chlorobenzene sulphonamide in alkaline medium: A kinetic and mechanistic studyProceedings / Indian Academy of Sciences - - 1998
K S Rangappa, M P Raghavendra, D S Mahadevappa, K M L Rai, D Channe Gowda
Kinetics and mechanism of oxidation of three methylpentoses, namelyD-fucose,L-fucose andL-rhamnose with sodiumN-chlorobenzene-sulphonamide (chloramine-B or CAB) in alkaline medium were studied at 313 K. The rate law, rate =k[CAB][S][HO−] was observed. Benzenesulphonamide and chloride ions, the reduced products of the oxidant had no effect on the reaction rate. The rate increased with increase in i...... hiện toàn bộ