Copper oxide supported on γ-alumina nanoparticles were prepared and were well characterized. In this study catalytic activities of the supported copper oxide for oxidation of cyclohexene to 2-cyclohexene-1-ol, 2-cyclohexene-1-one and cyclohexene oxide with TBHP and H2O2 as the oxidant, in the liquid phase were considered. For the CuO/γalumina nanocomposites, acetonitrile as the solvent was empl...

manganese (?) complex with 2, 2? bipyridine, 1, 1? dioxide (bpdo) ligand was immobilized within nanoreactors of mcm-41. the immobilized complex was characterized by powder x-ray diffraction (xrd), nitrogen adsorption desorption, and ftir. the pore volume, surface area and pore diameter of mcm-41 decreased after immobilization of mn complex. three bands observed at 1250, 1220 cm?1 and 757 cm?1 a...

Three new mononuclear cobalt compounds─trans-[Co(3,5-dbcat)(3,5-dbsq)(4-Etpy)2]·CH3CN (1), cis-[Co(3,5-dbcat)(3,5-dbsq)(3-NH2py)2]·DMF (2), and trans-[Co(3,5-dbcat)(3,5-dbsq)(4-NH2py)2]·2DMF (3) (where 3,5-dbcat2– 3,5-dbsq• – stand for 3,5-di-tert-butyl-catecholate 3,5-di-tert-butyl-semiquinonate, respectively), derived from a redox-active o-dioxolene ligand in the presence of 4-ethylpyridine (...

The conformational space of methacrylamide was explored by quantum mechanical modeling and surveyed in the 59.6–104.0 GHz frequency range using a millimeter-wave Stark-modulated free-jet absorption spectrometer. According to relative orientation two unsaturated bonds, conformers were observed, namely s-trans (A=5234.360(1), B=3364.9717(8) C=2173.099(1) MHz) s-cis (A=5207.292(1), B=3470.930(1) C...

In this paper we report the stepwise preparation and the characterization of new unsymmetrical monoanionic Ru(III) dinuclear compounds, [NH(4)][{trans-RuCl(4)(Me(2)SO-S)}(mu-L){mer-RuCl(3)(Me(2)SO-S)(Me(2)SO-O)}] (L = pyz (1), pym (2)). By a similar synthetic approach we also prepared new mixed-valence Ru(III)/Ru(II) dinuclear compounds of formula [NH(4)][{trans-RuCl(4)(Me(2)SO-S)}(mu-pyz){cis,...

the nanoparticles of ti-si mixed oxides (ntso) with rutile structure were prepared by sol-gel method in a mixture of alcohol and water as solvent. the solid product was characterized by xrd, ftir, sem, tem, uv, tga and laser raman spectroscopy. the catalytic activity of ntso (5-10 nm) was investigated in the epoxidation of cis stilbene, trans stilbene, and norbornene by using oxidants such as t...

cis-6-(2-Acetylvinylthio)purine (cis-AVTP) and trans-6-(2-acetylvinylthio)guanine (trans-AVTG) are glutathione-activated prodrugs of 6-mercaptopurine (6-MP) and 6-thioguanine (6-TG), respectively. Previously, we showed that the prodrugs exhibited less in vivo toxicity in mice than did 6-TG, whereas their in vitro cytotoxicity in two renal cell carcinoma cell lines was comparable with or better ...