UV spectrum and the kinetics and reaction pathways of the self-reaction of CH sub 2 CH sub 2 OH radicals

Journal Article · Thu Aug 09 04:00:00 EDT 1990 · Journal of Physical Chemistry; (USA)

DOI:https://doi.org/10.1021/j100379a033· OSTI ID:6418174

Anastasi, C; Simpson, V ^[1]; Munk, J; Pagsberg, P ^[2]

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1. Univ. of York, Heslington (England)
2. Riso National Laboratory, Roskilde (Denmark)

CH{sub 2}CH{sub 2}OH radicals have been studied at room temperature by using a pulse radiolysis/kinetic absorption technique. The ultraviolet spectrum lies in the range 210-265 nm with a maximum absorption cross section of 2.0 {times} 10{sup {minus}18} cm{sup 2} molecule{sup {minus}1} at 210 nm. This technique has also been used to study the overall kinetics of the self-reaction of these radicals: 2CH{sub 2}CH{sub 2}OH(+M) {yields} (CH{sub 2}CH{sub 2}OH){sub 2} (+M) (7a); 2CH{sub 2}CH{sub 2}OH (+M) {yields} CH{sub 3}CH{sub 2}OH (7b), while product studies using gas chromatography have yielded information on the reaction pathways. A value of k{sub 7} = 5.6 ({plus minus}1.0) {times} 10{sup {minus}11} cm{sup 3} molecule{sup {minus}1} s{sup {minus}1} and a branching ratio of k{sub 7a}/(k{sub 7a} + k{sub 7b}) {ge} 0.88 have been measured at room temperature.

• OSTI ID: 6418174
• Journal Information: Journal of Physical Chemistry; (USA), Journal Name: Journal of Physical Chemistry; (USA) Vol. 94:16; ISSN JPCHA; ISSN 0022-3654
• Country of Publication: United States
• Language: English

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