Journal of Physical Chemistry p. 5914 - 5919 (1984)
Update date:2022-08-04
Topics:
Manka, Michael J.
Stein, Stephen E.
Relative rates for radical disproportionation (R. + R'. <*> RH + R'd) and recombination (R. + R'. <*> RR') have been determined in the liquid phase at 150 deg C for a series of reactions involving resonance-stabilized hydroaromatic radicals.Self-reactions were studied for the 1-tetralyl, 1-indanyl, 9,10-dihydro-9-phenanthryl, and 9,10-dihydro-9-anthryl radicals.Four cross-radical reactions involving benzyl, diphenylmethyl, and 1-tetralyl radical as H-atom acceptors were also examined.Rate constant ratios (kd/kr) span the range of 1.34 for the self-reaction of 9,10- dihydro-9-phenanthryl radicals to 0.05 for the self-reaction of 9,10-dihydro-9-anthryl radicals.When disproportionation reaction exothermicity is sufficiently small, -ΔHd -1 (210 kJ mol-1), disproportionation rate constants decrease with decreasing exothermicity.A fit of liquid-phase data yields ln (kd/kr) per H atom = -10.1 - 0.163 ΔHd (kcal mol-1).
View MoreHubei Sky Lake Chemical Co., Ltd.
Contact:+86-27-87385545
Address:Te-2, Xijiao Chemical Park, Yuekou Town, Tianmen, Hubei, China.
Contact:86+21-56421993
Address:3F,BUILDING 10,NO.2889 JINKE ROAD, SHANGHAI.
Contact:+86-731-84427351
Address:154 JIANXIANG SOUTH ROAD
Contact:+86-18200374913
Address:Hongmei Road, No. 99
Henan PURUI Pharmaceutical Co., Ltd.
website:http://www.puruipharm.com
Contact:17739583555
Address:Yezhuangqiao,Xihua town, Henan province
Doi:10.1246/cl.1982.517
(1982)Doi:10.1002/cctc.201500812
(2016)Doi:10.1021/om010918e
(2002)Doi:10.1007/BF00944501
()Doi:10.1021/ja00784a063
(1973)Doi:10.1246/bcsj.59.2801
(1986)