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Substance: benzyl radical				Other Names: 

Formula: 	C7H7					CAS-No.: 2154-56-5

Study: uv extinction coefficients

                
Authors: N.A. McAskill, D.F. Sangster

Title: Ultraviolet absorption spectra of the benzyl radical formed during pulse radiolysis

Journal/Source: Australian Journal of Chemistry, 30(10) 2107 - 2113, (1977); doi:10.1071/CH9772107 


Data: table 

Energy/Wavelength range: 258 nm; 307 nm; 318 nm

Resolution: 

Temperature: 298 K

Temperature dependence: no

Pressure/Concentration: 10^-5 M

Phase: solution (cyclohexane)

pH:


Comments: The absorption of the band at 307/318 nm of the benzyl radical increased with solute concentration as expected over the range from 
to 10-5 to 10-1 M. On the other hand, the absorption of the 258-nm band decreased with concentration and is zero at 10-2 M.
Extinction coefficients (l. mol-1 cm-1) for the benzyl radical in 10-5 M solution are 9000 at 318 nm, 4500 at 307 nm and 41000 at 258 nm.

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