منابع مشابه
Solvent effects on reaction rates
Solvent effects on the rates of some well-known nuclophilic substitution reactions have been analysed in terms of initial—state and transition-state contributions. Where possible, the latter have been further analysed by the method of model solutes, on which solvent effects on a transition state are compared to solvent effects on a solute that might be a suitable model for the transition state....
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The solvent isotope effects on the reaction catalysed by rat-liver glucokinase have been studied. At low concentrations of glucose and high concentrations of MgATP2there is an inverse solvent isotope effect of 3.5. At high glucose concentrations there is a normal solvent isotope effect of 1.3. In 'HzO there is positive co-operativity with respect to glucose [Storer, A. C. and Cornish-Bowden, A....
متن کاملThe Solvent Effects on Grignard Reaction
This research focuses on the effects of water in a solvent on a synthetic process of a Grignard reagent which is common in organic synthesis and triggered an accident in Japan. For the measurement, a hermetically sealed apparatus was prepared to fit a small-scaled reaction calorimeter. The experimental results revealed that the induction period appeared as the water content in the solvent incre...
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This study focuses on the Baeyer-Villiger reaction of propanone and performic acid, with formic acid as catalyst. Continuum solvation methods (EIF-PCM and CPCM) and two density functionals (B3LYP and MPWB1K) are used to study solvent effects on two types of reaction mechanisms: concerted non-ionic and stepwise ionic. The ionic mechanism is the one found in most organic chemistry textbooks; it b...
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A general solvent-dependent protocol directly influencing the oxygen reduction reaction (ORR) in metal oxide/graphene nanohybrids has been demonstrated. We conducted the two-step synthesis of cobalt oxide/N-doped graphene nanohybrids (CNG) with solvents of water, ethanol, and dimethylformamide (DMF), representing tree typical categories of aqueous, polar organic, and organic N-containing solven...
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ژورنال
عنوان ژورنال: Bulletin of The Japan Petroleum Institute
سال: 1967
ISSN: 0582-4656
DOI: 10.1627/jpi1959.9.38