... (5 X lo7 Ml sec-'), enable us to estimate the rate constant of the reaction CCls + cC~HU + CClaH f C-CIHII (19) n-hexane, and cyclopentane: 5.4, 5.6, and 4.6, respectively. ... Journal of the American Chemical Society 1 91:17 August 13, 1969 Page 6. 463 1 ...