Relative Rates of Isomerization of Cyclopropane and Cyclopropanehyphen;t1

摘要

The relative rates of isomerization of cyclopropane and monotritiated cyclopropane have been determined in the temperature range of 447deg; to 555deg;C. The ratio of the rate constants for the two reactions can be fitted by the equation:ksol;kprime;equals;0.63plusmn;0.02thinsp;explpar;825plusmn;60sol;RTrpar;.The marked increase in the temperaturehyphen;independent term upon tritium substitution is discussed in terms of Slater's unimolecular reaction rate theory and Eyring's absolute reaction rate theory. The possibility of classical vibration coupling causing the observed effect is suggested.