| 09-01a,b
| | Title | Figure 9.1 | | Caption | Reaction coordinate diagrams for the abstraction of primary, secondary, and tertiary hydrogens by chlorine and bromine atoms. | | Notes | Since the chlorine abstractions are exothermic, their transition states resemble reactants, and their relative stabilities do not fully reflect the relative stabilities of the product alkyl radicals. The bromine abstractions are endothermic, so the bromine-abstraction transition states resemble product alkyl radicals. Thus, the relative stabilities of the bromine-abstraction transition states resemble the relative stabilities of the alkyl radical products. Thus, the activation energies (and relative speeds) of bromine-abstraction reactions more closely reflect alkyl radical stabilities than do the activation energies of chlorine-abstraction reactions. | | Keywords | reaction coordinate, diagrams, abstraction, hydrogens, chlorine, bromine, figure, 9.1 | |
