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a reaction can be unimolecular, bimolecular or even trimolecular. The kinetic order of any elementary reaction or reaction step is equal to its molecularity...

appears to be unimolecular and suggests first-order kinetics in the reactant, the Lindemann mechanism shows that the unimolecular reaction step is preceded...

mass action. Almost all elementary steps are either unimolecular or bimolecular. For a unimolecular step A → P the reaction rate is described by r = k 1 [...

carbocation formation is the slowest step, as known as the rate-determining step. Therefore, first-order kinetics apply (unimolecular). The reaction usually occurs...

"nucleophilic substitution", and the "1" says that the rate-determining step is unimolecular. Thus, the rate equation is often shown as having first-order dependence...

pre-equilibria prior to the rate-determining step, as shown below. Another example is the unimolecular nucleophilic substitution (SN1) reaction in organic...

elimination reaction and will lose two substituents. Unimolecular refers to the fact that the rate-determining step of this reaction only involves one molecular...

enthalpy and entropy of activation: ΔG‡ = ΔH‡ − T ΔS‡. Then, for a unimolecular, one-step reaction, the approximate relationships Ea = ΔH‡ + RT and A = (kBT/h)...

reaction involves electrophilic substitution, and an SN1 reaction is unimolecular. The system is named for British chemists Edward D. Hughes and Christopher...

collisions is, however, masked by the fact that the rate determining step remains the unimolecular breakdown of the energized reactant. The half-life is independent...

dynamics. Reactions in chemical processes are either unimolecular or bimolecular. The rate of a unimolecular reaction is an average over a vast ensemble of...

unimolecular elimination, where the rate determining step of the mechanism depends on the removal of a single molecular species. This is a two-step mechanism...

Chemistry. J. Gen. Chem. USSR (Engl. Transl.) 1990; 60 (3); 417-419. Unimolecular Nucleophilic Substitution does not Exist! / N.S.Imyanitov. SciTecLibrary...

chemical reactions, with reaction intermediates of variable lifetimes. In a unimolecular elementary reaction, a molecule A dissociates or isomerises to form the...

reactions involving unimolecular heterolysis depends heavily on rate of ionization of the covalent bond. The limiting reaction step is generally the formation...

important elementary reactions are unimolecular and bimolecular reactions. Only one molecule is involved in a unimolecular reaction; it is transformed by...

class E1 (HCV), a viral structural protein found in hepatitis C E1, a unimolecular elimination mechanism in organic chemistry E1-enzymes, also known as...

difference between the electrode and the bulk electrolyte for a simple, unimolecular redox reaction, considering that both a cathodic and an anodic reaction...

involved in a single reaction step. A reaction step involving one molecular entity is called unimolecular. A reaction step involving two molecular entities...

Nucleophilic substitutions can proceed by two different mechanisms, unimolecular nucleophilic substitution (SN1) and bimolecular nucleophilic substitution...