Jump to content

Search results

View (previous 20 | ) (20 | 50 | 100 | 250 | 500)
  • Molecularity (redirect from Unimolecular)
    a reaction can be unimolecular, bimolecular or even trimolecular. The kinetic order of any elementary reaction or reaction step is equal to its molecularity...
    8 KB (1,137 words) - 21:06, 1 October 2023
  • 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 [...
    17 KB (2,387 words) - 00:47, 18 October 2024
  • appears to be unimolecular and suggests first-order kinetics in the reactant, the Lindemann mechanism shows that the unimolecular reaction step is preceded...
    11 KB (1,670 words) - 12:06, 27 June 2024
  • Thumbnail for Elimination reaction
    carbocation formation is the slowest step, as known as the rate-determining step. Therefore, first-order kinetics apply (unimolecular). The reaction usually occurs...
    14 KB (1,844 words) - 22:24, 27 May 2024
  • "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...
    15 KB (1,970 words) - 03:54, 24 October 2024
  • pre-equilibria prior to the rate-determining step, as shown below. Another example is the unimolecular nucleophilic substitution (SN1) reaction in organic...
    12 KB (1,736 words) - 20:02, 2 September 2024
  • elimination reaction and will lose two substituents. Unimolecular refers to the fact that the rate-determining step of this reaction only involves one molecular...
    17 KB (2,146 words) - 20:27, 22 July 2024
  • Thumbnail for Activation energy
    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)...
    19 KB (2,158 words) - 18:32, 6 November 2024
  • the energized molecule which is unimolecular and first order. The rate of the overall reaction depends on the slowest step, so the overall reaction will...
    45 KB (7,640 words) - 05:18, 3 November 2024
  • Thumbnail for Robert Gilbert (chemist)
    dynamics. Reactions in chemical processes are either unimolecular or bimolecular. The rate of a unimolecular reaction is an average over a vast ensemble of...
    17 KB (2,341 words) - 00:41, 21 February 2024
  • Thumbnail for Hammond's postulate
    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...
    20 KB (2,565 words) - 03:51, 9 July 2024
  • chemical reactions, with reaction intermediates of variable lifetimes. In a unimolecular elementary reaction, a molecule A dissociates or isomerises to form the...
    4 KB (479 words) - 09:23, 4 April 2024
  • reaction involves electrophilic substitution, and an SN1 reaction is unimolecular. The system is named for British chemists Edward D. Hughes and Christopher...
    1 KB (120 words) - 08:08, 25 April 2024
  • involved in a single reaction step. A reaction step involving one molecular entity is called unimolecular. A reaction step involving two molecular entities...
    13 KB (1,686 words) - 06:29, 9 August 2024
  • difference between the electrode and the bulk electrolyte for a simple, unimolecular redox reaction, considering that both a cathodic and an anodic reaction...
    18 KB (3,205 words) - 08:23, 20 July 2024
  • Chemistry. J. Gen. Chem. USSR (Engl. Transl.) 1990; 60 (3); 417-419. Unimolecular Nucleophilic Substitution does not Exist! / N.S.Imyanitov. SciTecLibrary...
    12 KB (1,415 words) - 13:08, 26 August 2024
  • Thumbnail for SNi
    Alan D. (1937). "258. The mechanism of elimination reactions. Part I. Unimolecular olefin formation from alkyl halides in sulphur dioxide and formic acid"...
    5 KB (514 words) - 18:33, 25 October 2024
  • Nucleophilic substitutions can proceed by two different mechanisms, unimolecular nucleophilic substitution (SN1) and bimolecular nucleophilic substitution...
    12 KB (1,456 words) - 13:55, 26 August 2024
  • class E1 (HCV), a viral structural protein found in hepatitis C E1, a unimolecular elimination mechanism in organic chemistry E1-enzymes, also known as...
    5 KB (698 words) - 08:43, 10 June 2024
  • reactions involving unimolecular heterolysis depends heavily on rate of ionization of the covalent bond. The limiting reaction step is generally the formation...
    5 KB (641 words) - 21:53, 3 February 2024
View (previous 20 | ) (20 | 50 | 100 | 250 | 500)