Product Detection of the CH Radical Reactions with Ammonia and Methyl-Substituted Amines

The Journal of Physical Chemistry. a
Jérémy BourgalaisFabien Goulay

Abstract

Reactions of the methylidyne (CH) radical with ammonia (NH3), methylamine (CH3NH2), dimethylamine ((CH3)2NH), and trimethylamine ((CH3)3N) have been investigated under multiple collision conditions at 373 K and 4 Torr. The reaction products are detected by using soft photoionization coupled to orthogonal acceleration time-of-flight mass spectrometry at the Advanced Light Source (ALS) synchrotron. Kinetic traces are employed to discriminate between CH reaction products and products from secondary or slower reactions. Branching ratios for isomers produced at a given mass and formed by a single reaction are obtained by fitting the observed photoionization spectra to linear combinations of pure compound spectra. The reaction of the CH radical with ammonia is found to form mainly imine, HN═CH2, in line with an addition-elimination mechanism. The singly methyl-substituted imine is detected for the CH reactions with methylamine, dimethylamine, and trimethylamine. Dimethylimine isomers are formed by the reaction of CH with dimethylamine, while trimethylimine is formed by the CH reaction with trimethylamine. Overall, the temporal profiles of the products are not consistent with the formation of aminocarbene products in the reaction flow...Continue Reading

References

Sep 29, 2005·Physical Chemistry Chemical Physics : PCCP·Nicolas DaugeyGérard Dorthe
Mar 3, 2006·The Journal of Physical Chemistry. a·Fabien GoulayBertrand R Rowe
Jul 5, 2007·The Journal of Physical Chemistry. a·Michael R BermanRodney J Bartlett
Dec 14, 2007·Physical Chemistry Chemical Physics : PCCP·Craig A TaatjesPhillip R Westmoreland
Dec 3, 2008·The Review of Scientific Instruments·David L OsbornStephen R Leone
Dec 5, 2008·The Journal of Physical Chemistry. a·Zhenyu TianFei Qi
Jan 7, 2009·Journal of the American Chemical Society·Fabien GoulayStephen R Leone
May 7, 2010·Angewandte Chemie·Katharina Kohse-HöinghausPhillip R Westmoreland
Jan 11, 2012·The Journal of Physical Chemistry. a·Fabien GoulayStephen R Leone
Jun 30, 2012·Physical Chemistry Chemical Physics : PCCP·John D SaveeDavid L Osborn
Feb 14, 2013·Physical Chemistry Chemical Physics : PCCP·Fabien GoulayCraig A Taatjes
Jul 30, 2014·Environmental Science & Technology·Lavinia OnelPaul Seakins
Aug 26, 2015·Physical Chemistry Chemical Physics : PCCP·Michael CapronFabien Goulay
Mar 10, 2009·Journal of Chemical Theory and Computation·Vincenzo BaroneFabrizio Santoro
Feb 4, 2016·Physical Chemistry Chemical Physics : PCCP·Adam J Trevitt, Fabien Goulay
Nov 2, 2016·The Journal of Physical Chemistry. a·J BourgalaisS D Le Picard

❮ Previous
Next ❯

Citations


❮ Previous
Next ❯

Related Concepts

Related Feeds

Amyloid Lateral Sclerosis

Amyotrophic Lateral Sclerosis (ALS) is a progressive nervous system disease associated with the death of neurons that control voluntary muscles. Discover the latest research on ALS here.