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Pyrolysis of 2-phenylethylamines heats of formation of aminomethyl radicals R_2NCH_2^• (R = H, CH_3)

Grela, M. A. and Colussi, A. J. (1985) Pyrolysis of 2-phenylethylamines heats of formation of aminomethyl radicals R_2NCH_2^• (R = H, CH_3). International Journal of Chemical Kinetics, 17 (3). pp. 257-264. ISSN 0538-8066. http://resolver.caltech.edu/CaltechAUTHORS:20150731-133228666

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Abstract

A kinetic study of the very low-pressure pyrolysis of ethylbenzene (I), 2-phenylethylamine (II), and N,N-dimethyl 2-phenylethylamine (III) (1) PhCH_2CH_3 = PhCH_2^• + ^•CH_3 (2) PhCH_2CH_2NH_2 = PhCH_2^• + H_2NCH_2^• (3) PhCH_2CH_2N(CH_3)_2 = PhCH_2^• + (CH_3)_2NCH_2^• above 900 K yields the heats of formation of aminomethyl (A) and N,N-dimethylaminomethyl (B) radicals: ΔH_(ƒ, 300 K)(A) = 30.3 and ΔH_(ƒ, 300 K)(B) = 27.5 kcal/mol. The difference of stabilization energies E_s, (relative to methyl radicals): Δ = E_s(B) − E_s(A) = (2 ± 1) kcal/mol, conforms to similar effects in methyl substituted alkyl and amino free radicals.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1002/kin.550170302DOIArticle
http://onlinelibrary.wiley.com/doi/10.1002/kin.550170302/abstractPublisherArticle
ORCID:
AuthorORCID
Colussi, A. J.0000-0002-3400-4101
Additional Information:© 1985 John Wiley & Sons. Received April 25, 1984, Accepted September 5, 1984. This work was supported by CIC, SUBCYT, and CONICET of Argentina.
Funders:
Funding AgencyGrant Number
Comision de Investigaciones Cientificas de la Provincia de Buenos AiresUNSPECIFIED
Subsecretariat of Science and Technology (SUBCYT)UNSPECIFIED
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)UNSPECIFIED
Record Number:CaltechAUTHORS:20150731-133228666
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20150731-133228666
Official Citation:Grela, M. A. and Colussi, A. J. (1985), Pyrolysis of 2-phenylethylamines heats of formation of aminomethyl radicals R2NCH2 · (R = H, CH3). Int. J. Chem. Kinet., 17: 257–264. doi: 10.1002/kin.550170302
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:59115
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:05 Aug 2015 23:02
Last Modified:05 Aug 2015 23:02

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