THE ELECTRONIC ABSORPTION SPECTRUM OF THE PROPARGYL RADICAL
- 1 July 1966
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Physics
- Vol. 44 (7) , 1381-1386
- https://doi.org/10.1139/p66-116
Abstract
A new system of diffuse bands in the region 2 900 to 3 450 Å has been found during the flash photolysis of propargyl bromide, propargyl chloride, methyl acetylene, allene, and other compounds. Isotopic studies have been carried out with five isotopically labeled parent compounds. The new bands are assigned to the propargyl radical, CH2—C≡CH. The diffuseness of the bands is attributed to predissociation of the radical in the excited state and gives an upper limit of 86.0 kcal/mole for the dissociation energy of the radical.Keywords
This publication has 6 references indexed in Scilit:
- Photochemical Formation of Free Radicals from Olefinic and Acetylenic Compounds in the Frozen State as Studied by Electron Spin Resonance1Journal of the American Chemical Society, 1965
- Identification of Free Radicals in Flash PhotolysisNature, 1964
- Electronic absorption spectra of HCO and DCO radicalsDiscussions of the Faraday Society, 1963
- Estimation of Molecular Parameters of C/H FragmentsThe Journal of Chemical Physics, 1962
- The Electronic Spectra of Aromatic Molecules IV: Excited States of Odd Alternant Hydrocarbon Radicals and IonsProceedings of the Physical Society. Section A, 1955
- The thermal stability and reactivity of hydrocarbon radicalsDiscussions of the Faraday Society, 1951