Results 311 to 320 of about 1,822,559 (326)

A method for determination of rate constants in enzyme reactions

Journal of Theoretical Biology, 1967
Abstract This paper describes a special technique developed to determine the kinetic rate constants for a certain type of enzyme mechanism. It is demonstrated that one of the desired rate constants has a linear dependence on the Michealis constant. By varying the initial conditions of the enzyme reaction, the slope of this linear dependence can be ...
John R. Cannon, David L. Filmer, N. Reiss   +2 more
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Rate Constants for Anilidyl Radical Cyclization Reactions

The Journal of Organic Chemistry, 2005
[reaction: see text] N-Aryl-5,5-diphenyl-4-pentenamidyl radicals (3) were produced by 266 nm laser-flash photolysis of the corresponding N-(phenylthio) derivatives, and the rate constants for the cyclizations of these radicals were measured directly. The 5-exo cyclization reactions were fast (k(c) > 2 x 10(5) s(-1)), and radicals 3 generally behaved as
Martin Newcomb, Martinez E nd
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A priori rate constant for the reaction of BH with NO

Chemical Physics Letters, 1990
Abstract The reaction involves two short-lived collision complexes, BHNO † and HBON † , which rearrange to products BO+NH via the same cyclic transition state. The overall rate constant depends on the rates of complex formation by capture over the centrifugal barrier in the dipole-dipole potential, and the rates of unimolecular decomposition and ...
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Reaction rates and reaction rate constant conception. One-temperature case

AIP Conference Proceedings, 2012
The new method of getting a normal solution for the generalized Boltzmann equation for reacting gas mixtures was proposed. It is based on the following items: (i) slow variables are introduced via approximate summational invariants, defined within the method, (ii) kinetic equations are presented in the form of a singularly perturbed system for gas ...
Evgeniy G. Kolesnichenko, Yuriy E. Gorbachev   +1 more
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Determination the rate constants of some biexponential reactions

Journal of Biochemical and Biophysical Methods, 2000
Reactions that are described by biexponential functions are typical for many biological processes. The kinetics of these reactions is described by transcendental irrational equations interconnecting the reagent concentrations, time and rate constants.
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Rate constants of reactions with no activation energy

Progress in Energy and Combustion Science, 1992
Abstract Current theoretical methods of predicting rate constant values for fast reactions with no activation energy are described and discussed. For many reactions in this category, the overall rate is controlled by the rate of capture over the centrifugal barrier in a long-range electrostatic potential.
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Rate Constants for Reactions of Phenoxyl Radicals in Solution

Journal of Physical and Chemical Reference Data, 2005
Absolute rate constants for reactions of phenoxyl radicals in solution have been compiled and evaluated from the literature (172 citations). Rate constants are included for phenoxyl radicals bearing various substituents, including semiquinone radicals and radical ions, as well as aroxyl radicals derived from polycyclic aromatic compounds. The reactions
Pedatsur Neta, J Grodkowski
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ChemInform Abstract: ABSOLUTE RATE CONSTANTS FOR REACTIONS OF CUMYLOXY IN SOLUTION

Chemischer Informationsdienst, 1983
Determination de la constante de vitesse de la reaction du radical cumyloxyle avec 10 substrats parmi lesquels le cumene et le peroxyde de cumyle, et de la β-scission du radical cumyloxyle en solution en utilisant les techniques de photolyse eclair ...
J. A. Howard, Juan C. Scaiano, A. Baignee, L. C. Stewart   +3 more
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Rate constants for polymerization reactions

Journal of Polymer Science, 1954
H. W. Melville, G. M. Burnett
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Relative rate constants for the reactions of methylphenylsilylene

Organometallics, 1987
William P. Weber, David Griller, Jalal Hawari, M. Lesage   +3 more
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