Absolute rate constants for decarbonylation of phenylacetyl and related radicals

Nicholas J. Turro, Ian Gould, Bruce H. Baretz

Research output: Contribution to journalArticle

135 Citations (Scopus)

Abstract

The rate constants and Arrhenius parameters for decarbonylation of phenylacetyl (C6H5CH2CO), phenylmethylacetyl (C6H5CHCH3ĊO), and phenyldimethylacetyl [C6H5C(CH3)2CO] radicals in isooctane have been determined by laser flash photolysis. The variation of the rate constant for decarbonylation follows the pattern expected from radical stabilities, but the activation energies do not. It is proposed that previously unrecognized conformational restrictions may be significant in determining decarbonylation rates.

Original languageEnglish (US)
Pages (from-to)531-532
Number of pages2
JournalJournal of Physical Chemistry
Volume87
Issue number4
StatePublished - 1983
Externally publishedYes

Fingerprint

Rate constants
Photolysis
Activation energy
flash
photolysis
Lasers
constrictions
activation energy
lasers
2,2,4-trimethylpentane

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Absolute rate constants for decarbonylation of phenylacetyl and related radicals. / Turro, Nicholas J.; Gould, Ian; Baretz, Bruce H.

In: Journal of Physical Chemistry, Vol. 87, No. 4, 1983, p. 531-532.

Research output: Contribution to journalArticle

Turro, Nicholas J. ; Gould, Ian ; Baretz, Bruce H. / Absolute rate constants for decarbonylation of phenylacetyl and related radicals. In: Journal of Physical Chemistry. 1983 ; Vol. 87, No. 4. pp. 531-532.
@article{d88ac95d362344f5a41510a2e1aacba9,
title = "Absolute rate constants for decarbonylation of phenylacetyl and related radicals",
abstract = "The rate constants and Arrhenius parameters for decarbonylation of phenylacetyl (C6H5CH2CO), phenylmethylacetyl (C6H5CHCH3ĊO), and phenyldimethylacetyl [C6H5C(CH3)2CO] radicals in isooctane have been determined by laser flash photolysis. The variation of the rate constant for decarbonylation follows the pattern expected from radical stabilities, but the activation energies do not. It is proposed that previously unrecognized conformational restrictions may be significant in determining decarbonylation rates.",
author = "Turro, {Nicholas J.} and Ian Gould and Baretz, {Bruce H.}",
year = "1983",
language = "English (US)",
volume = "87",
pages = "531--532",
journal = "Journal of Physical Chemistry",
issn = "0022-3654",
publisher = "American Chemical Society",
number = "4",

}

TY - JOUR

T1 - Absolute rate constants for decarbonylation of phenylacetyl and related radicals

AU - Turro, Nicholas J.

AU - Gould, Ian

AU - Baretz, Bruce H.

PY - 1983

Y1 - 1983

N2 - The rate constants and Arrhenius parameters for decarbonylation of phenylacetyl (C6H5CH2CO), phenylmethylacetyl (C6H5CHCH3ĊO), and phenyldimethylacetyl [C6H5C(CH3)2CO] radicals in isooctane have been determined by laser flash photolysis. The variation of the rate constant for decarbonylation follows the pattern expected from radical stabilities, but the activation energies do not. It is proposed that previously unrecognized conformational restrictions may be significant in determining decarbonylation rates.

AB - The rate constants and Arrhenius parameters for decarbonylation of phenylacetyl (C6H5CH2CO), phenylmethylacetyl (C6H5CHCH3ĊO), and phenyldimethylacetyl [C6H5C(CH3)2CO] radicals in isooctane have been determined by laser flash photolysis. The variation of the rate constant for decarbonylation follows the pattern expected from radical stabilities, but the activation energies do not. It is proposed that previously unrecognized conformational restrictions may be significant in determining decarbonylation rates.

UR - http://www.scopus.com/inward/record.url?scp=0001627199&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0001627199&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0001627199

VL - 87

SP - 531

EP - 532

JO - Journal of Physical Chemistry

JF - Journal of Physical Chemistry

SN - 0022-3654

IS - 4

ER -