Data for the reaction in toluene at 45 °C are given in the table. In all cases, the...

Data for the reaction

in toluene at 45 °C are given in the table. In all cases, the reaction is pseudo–first order in Co(NO)(CO)₃. Determine the rate constant(s) and discuss their probable significance (See E. M. Thorsteinson, F. Basolo, J. Am. Chem. Soc. , 1966 , 88 , 3929).