Isotope effects in isotope-exchange reactions: Evidence for a large C-12/C-13 kinetic isotope effect in the gas phase

de Petris G; Troiani A

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Isotope effects in isotope-exchange reactions: Evidence for a large C-12/C-13 kinetic isotope effect in the gas phase

机译：同位素交换反应中的同位素效应：气相中大的C-12 / C-13动力学同位素效应的证据

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The O-exchange reaction between CO2+ and CO is triggered by two different entrance channels in C-13-labeled systems. The unimolecular dissociation of the (CCO3+)-C-13 reactive intermediate is investigated at varying energies by mass spectrometric techniques. An almost "one-way" O-exchange at energies close to the dissociation threshold discloses a remarkably large intramolecular C-12/C-13 kinetic isotope effect ranging from 6.0 to 7.3 +/- 0.5.

机译：在C-13标记的系统中，两个不同的入口通道触发了CO2 +和CO之间的O交换反应。通过质谱技术研究了在不同能量下（CCO3 +）-C-13反应性中间体的单分子解离。接近解离阈值的能量几乎“单向”发生O交换，表明分子内的C-12 / C-13动力学同位素效应非常大，范围从6.0到7.3 +/- 0.5。

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《The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory》 |2008年第12期|共4页
作者
de Petris G; Troiani A;
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正文语种 eng
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COLLISIONAL ACTIVATION; PLANETARY-ATMOSPHERES; OZONE FORMATION; RADICAL-CATION; SN2 REACTIONS; MASS SPECTRA; IONS; CO; FRACTIONATION; REARRANGEMENT;

机译：集体活化;行星大气;臭氧形成;自由基阳离子;SN2反应;质谱;离子;CO;分馏;重排;

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1. Isotope effects in isotope-exchange reactions: Evidence for a large C-12/C-13 kinetic isotope effect in the gas phase [J] . de Petris G, Troiani A The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory . 2008,第12期

机译：同位素交换反应中的同位素效应：气相中大的C-12 / C-13动力学同位素效应的证据
2. Isotope effects in isotope-exchange reactions: Evidence for a large C-12/C-13 kinetic isotope effect in the gas phase [J] . de Petris G, Troiani A The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory . 2008,第12期

机译：同位素交换反应中的同位素效应：气相中大的C-12 / C-13动力学同位素效应的证据
3. Measurements of the C-12/C-13 kinetic isotope effects in the gas-phase reactions of light alkanes with chlorine atoms [J] . Anderson RS, Huang L, Iannone R, The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory . 2007,第26期

机译：轻烷烃与氯原子气相反应中C-12 / C-13动力学同位素效应的测量
4. Kinetic and Equilibrium Deuterium Isotope Effects for C-H Bond Reductive Elimination and Oxidative Addition Reactions Involving the Ansa-Tungstenocene Methyl-Hydride Complex Me_2Si(C_5Me_4)_2W(Me)H [C] . Kevin E. Janak, David G. Churchill, Gerard parkin American Chemical Society National Meeting . 2004

机译：动力学和均衡氘同位素对C-H键的减少消除和氧化添加反应涉及Ansa-钨烯甲基 - 氢化物复合物ME_2SI（C_5ME_4）_2 W（ME）H.
5. Experimental and computational investigations of substituent effects on housane cation radical rearrangement, intramolecular atom transfer reactions of trimethylenemethane diradicals, and kinetic isotope effects on alkylidene carbene insertion reactions. [D] . Gerken, James Beall. 2004

机译：实验和计算研究的取代基对husane阳离子自由基重排的影响，三亚甲基二自由基的分子内原子转移反应以及动力学同位素对亚烷基卡宾插入反应的影响。
6. 13C Kinetic Isotope Effects on the Reaction of a Flavin Amine Oxidase Determined from Whole Molecule Isotope Effects [O] . José R. Tormos, Marina B. Suarez, Paul F. Fitzpatrick -1

机译：从全分子同位素效应确定的13C动力学同位素对黄素胺氧化酶反应的影响
7. The kinetics of solid-state isotope-exchange reactions for clumped isotopes: A study of inorganic calcites and apatites from natural and experimental samples [O] . D. A. Stolper, J. M. Eiler 2015

机译：块状同位素的固态同位素交换反应的动力学：自然和实验样品中无机钙化物和磷灰石的研究

Isotope effects in isotope-exchange reactions: Evidence for a large C-12/C-13 kinetic isotope effect in the gas phase

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