science-softCon uv/vis+ photochemistry database;	www.photochemistry.org; (C) science-softCon 2019

Substance: propargyl radical				Other Names: prop-1-yn-3-yl radical

Formula: C3H3						CAS-No.: 2932-78-7

Study: electronic spectra, photolysis


Authors: D.B. Atkinson, J.W. Hudgens

Title: Rate Coefficients for the Propargyl Radical Self-Reaction and Oxygen Addition Reaction Measured Using Ultraviolet Cavity Ring-down Spectroscopy

Journal/Source: J. Phys. Chem. A, 103 (21), 4242–4252, (1999); DOI: 10.1021/jp990468s


Data: 

Energy/Wavelength range: 332.5 nm

Resolution:

Temperature: 295 K

Temperature dependence: no

Pressure/Concentration: 2.25 and 100 Torr in Ar, He, and N2 buffer gases

Phase: gas

pH:


Comments: Three measurements of the propargyl radical absorption cross-section obtained sigma(332.5 nm) = (413 ± 60) × 10-20 cm2 molecule-1 
at 332.5 nm.

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