Kinetic isotope effects and rate constants for the gas-phase reactions of three deuterated toluenes with OH from 298 to 353 K

2012 ◽  
Vol 44 (12) ◽  
pp. 821-827 ◽  
Author(s):  
Daekyun Kim ◽  
Philip S. Stevens ◽  
Ronald A. Hites
Keyword(s):  
Gas Phase ◽  
Rate Constants ◽  
Isotope Effects ◽  
Kinetic Isotope Effects ◽  
Gas Phase Reactions ◽  
Kinetic Isotope

Activation of methane by gaseous platinum(II) ions PtX+ (X = H, Cl, Br, CHO)

2005 ◽  
Vol 83 (11) ◽  
pp. 1936-1940 ◽  
Author(s):  
Detlef Schröder ◽  
Helmut Schwarz
Keyword(s):  
Mass Spectrometry ◽  
Key Words ◽  
Electrospray Ionization ◽  
Gas Phase ◽  
Bond Activation ◽  
Isotope Effects ◽  
Kinetic Isotope Effects ◽  
Methane Activation ◽  
Gas Phase Reactions ◽  
Kinetic Isotope

The gas-phase reactions of methane with the platinum(II) ions PtX+ with X = H, Cl, Br, and CHO are studied by mass spectrometry. The PtX+ ions are generated by electrospray ionization of methanolic solutions of hexachloroplatinic acid and hexabromoplatinic acid, respectively. Small to moderate intramolecular kinetic isotope effects determined for the C—H(D) bond activation of CH2D2 suggest that the activation of methane by gaseous PtX+ cations is subject to thermochemical control by the product channels. In addition, the PtCl2+ cation is also able to activate methane, whereas PtCl3+ is unreactive under the conditions chosen. Key words: gas-phase reactions, mass spectrometry, methane activation, platinum bromide, platinum chloride.

Secondary deuterium kinetic isotope effects on the thermolysis of 1-pyrazolines

1968 ◽  
Vol 46 (21) ◽  
pp. 3301-3304 ◽  
Author(s):  
Basil H. Al-Sader ◽  
Robert J. Crawford
Keyword(s):  
Gas Phase ◽  
Rate Constants ◽  
Relative Rate ◽  
Isotope Effects ◽  
Kinetic Isotope Effects ◽  
Kinetic Isotope ◽  
Relative Rate Constants

Secondary kinetic isotope effects on four deuterated 1-pyrazolines support the formation of a trimethylene intermediate during gas phase thermolysis. Calculation of cyclization relative rate constants for the trimethylene intermediates reveals that substitution of hydrogen by deuterium has no effect when the terminal methylenes are substituted, but the rate constants are decreased when the central methylene's hydrogens are substituted. Explanations are advanced for all of the observed effects.

Deuterium kinetic isotope effects on the gas-phase reactions of C2H with H2(D2) and CH4(CD4)

2011 ◽  
Vol 13 (9) ◽  
pp. 4022 ◽  
Author(s):  
Akira Matsugi ◽  
Kohsuke Suma ◽  
Akira Miyoshi
Keyword(s):  
Gas Phase ◽  
Isotope Effects ◽  
Kinetic Isotope Effects ◽  
Gas Phase Reactions ◽  
Kinetic Isotope

Measurements of the12C/13C Kinetic Isotope Effects in the Gas-Phase Reactions of Light Alkanes with Chlorine Atoms

2007 ◽  
Vol 111 (3) ◽  
pp. 495-504 ◽  
Author(s):  
Rebecca S. Anderson ◽  
Lin Huang ◽  
Richard Iannone ◽  
Jochen Rudolph
Keyword(s):  
Gas Phase ◽  
Isotope Effects ◽  
Kinetic Isotope Effects ◽  
Gas Phase Reactions ◽  
Chlorine Atoms ◽  
Light Alkanes ◽  
Kinetic Isotope

Muonium Addition Reactions and Kinetic Isotope Effects in the Gas Phase: k∞ Rate Constants for Mu + C2H2

2015 ◽  
Vol 119 (28) ◽  
pp. 7247-7256 ◽  
Author(s):  
Donald J. Arseneau ◽  
David M. Garner ◽  
Ivan D. Reid ◽  
Donald G. Fleming
Keyword(s):  
Gas Phase ◽  
Rate Constants ◽  
Isotope Effects ◽  
Kinetic Isotope Effects ◽  
Addition Reactions ◽  
Kinetic Isotope

Method for Measuring Carbon Kinetic Isotope Effects of Gas-Phase Reactions of Light Hydrocarbons with the Hydroxyl Radical

2003 ◽  
Vol 107 (32) ◽  
pp. 6191-6199 ◽  
Author(s):  
Rebecca S. Anderson ◽  
Eva Czuba ◽  
Darrell Ernst ◽  
Lin Huang ◽  
Alexandra E. Thompson ◽  
...  
Keyword(s):  
Hydroxyl Radical ◽  
Gas Phase ◽  
Isotope Effects ◽  
Kinetic Isotope Effects ◽  
Light Hydrocarbons ◽  
Gas Phase Reactions ◽  
Kinetic Isotope
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