118334-01-3Relevant academic research and scientific papers
PULSE RADIOLYSIS OF 2,4,5-TRICHLOROPHENOL: FORMATION, KINETICS, AND PROPERTIES OF HYDROXYTRICHLOROCYCLOHEXADIENYL, TRICHLOROPHENOXYL, AND DIHYDROXYTRICHLOROCYCLOHEXADIENYL RADICALS
Draper, R. Barton,Fox, Marye Anne,Pelizzetti, Ezio,Serpone, Nick
, p. 1938 - 1944 (1989)
Pulse radiolysis has been used to optically and kinetically characterize the transient free radicals formed by the reaction of H., N3., or OH. with 2,4,5-trichlorophenol (TCP-OH).The hydroxy-2,4,5-trichlorocyclohexadienyl radical (H-TCP-OH) formed by H. addition to TCP-OH -1s-1> has an absorption maximum at 360 nm with ε360=(4700+/-1000) M-1cm-1.The 2,4,5-trichlorophenoxyl radical (TCP-O.) formed by the reaction of N3. with TCP-O- -1s-1> has an absorption maximum at 430 nm with ε430=(3600+/-600) M-1cm-1.The dihydroxy-2,4,5-trichlorocyclohexadienyl radical (HO-TCP-OH) formed by OH. radical addition to TCP-OH -1s-1A has an absorption maximum at 320 nm with ε320=(5300+/-250) M-1cm-1.The principal isomer formed by the reaction of OH. with TCP-OH is the 1,6-dihydroxy-2,4,5-trichlorocyclohexadienyl radical, which has a pKa of 4.8+/-1.0.The solution absorption from each radical decays via second-order kinetics on the millisecond time scale.
