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11.
K. J. Tony V. Mahadevan J. Rajaram C. S. Swamy 《Reaction Kinetics and Catalysis Letters》1997,62(1):105-116
Thetrans-dioxo ruthenium (VI) complex, [P(C6H5)3C6H5CH2]+[Ru(O)2OAcCl2] or tetrapropylammonium perruthenate catalyzes the oxidation of secondary alcohols to ketones byN-methylmorpholine-N-oxide (NMO). Kinetic studies showed the formation of a complex between catalyst and substrate (alcohol) as the first step
in the mechanism. 相似文献
12.
The kinetics of polymerization of acrylonitrile initiated by the redox systems cyanoacetic acid/Mn(OAc)3 and cyanoacetic acid/tris(benzoylacetonato)manganese(III) in dimethylsulphoxide as solvent have been investigated over the range 20–35°. The kinetics of oxidation are consistent with the formation of intermediate complexes between the reactants, followed by electron transfer. Manganous ions inhibit the reaction by competitive complexation. The primary radicals are very efficient as initiators of polymerization which is terminated by mutual interaction of macroradicals. Mechanisms have been proposed to explain the kinetics; rate and equilibrium constants have been evaluated. 相似文献
13.
14.
15.
The one-electron oxidation of toluidine blue by specific oxidising radicals such as Cl
2
−
, Tl(II), N3, Br
2
−
etc. has been studied by employing the pulse radiolysis technique. The Br
2
−
radical was found to be less efficient in oxidising toluidine blue as compared to Cl
2
−
., Tl+2 and N3. The semioxidised species exhibited only onepK
a indicating the presence of two conjugate acid-base forms whose spectral and kinetic features were evaluated. Reaction of
OH radicals with the dye gave rise to a transient species which exhibited spectral and kinetic features different from that
of the semioxidised species indicating that the mode of reaction of OH is different. 相似文献
16.
Leslie W. Deady Andrew B. Hughes Indumathy B. Mahadevan Nurul H. Quazi Leann M. Tilley 《合成通讯》2013,43(5):803-820
The synthesis of fluorescent 2,10-derivatives of the title chromophore are described. The substituents contain amino-reactive N-hydroxysuccinimde ester and thiol-reactive iodoacetamide groups for attachment to biomolecules. A phosphate derivative was also prepared as an enzyme substrate. 相似文献
17.
18.
Gurumurthy Dummi Mahadevan Feng Zhao 《Journal of Radioanalytical and Nuclear Chemistry》2017,314(3):1477-1485
Currently, the existing microbial radionuclides transformations processes are not completely understood. Bacteria, however, solubilize radionuclides by direct enzymatic reduction, or indirectly by its metabolites and by facilitating electrochemical redox systems. Microbes exchange electrons from proteins, organelles, metabolites to metals and electrodes have strengthened the novel bioremediation methods. In contrast, MRCs based on this redox behavior has offered considerable value over traditional treatment because of growing renewable and conception of energy incentives methods. Moreover, MRCs provides a flexible platform that enables us to access integrated treatment process of generating power and for recovering valuable resources from the contaminated sites. 相似文献
19.
20.
Maravanji S. Balakrishna Srinivasan Priya Rashmishree Panda 《Phosphorus, sulfur, and silicon and the related elements》2013,188(4-5):911-914
Ten-membered heterocycles of the type PhN(PCl2){OC6H2(R)2 (μ-S(CH2))((R)2─C6H2O─)} (R = Me, iPr or tBu) have been prepared and their transition metal chemistry is explored. Functionalised phosphines react with transition metals to give interesting metallacycles. Several Group 6, ruthenium, platinum metals and novel titanium(IV) metallacycles have been structurally characterized. 相似文献