Recoil tritium reactions with 1,2-difluoroethylenes
Recoil tritium reactions with cis- and trans-CHF=CHF have been studied. The results indicate that the majority of the tritium-labeled parent molecules are formed via the direct T-for-H substitution process and that the geometric isomers are formed via unimolecular isomerization of the excited parent molecules. On the other hand, the recoil tritium addition process will give rise to an excited radical that immediately converts to a bridged complex. Such a bridged complex may either isomerize to effect a net 1,2 F-atom migration to give CHT=CF/sub 2/ as the final product or expel an F-atom to form CHT=CHF.
We study the basic properties of tensor random fields (TRFs) of the wide-sense homogeneous and isotropic kind with generally anisotropic realizations. Working within the constraints of small strains, attention is given to antiplane elasticity, thermal conductivity, classical elasticity and micropolar elasticity, all in quasi-static settings albeit without making any specific statements about the Fourier and Hooke laws. The field equations (such as linear and angular momentum balances and strain–displacement relations) lead to consequences for the respective dependent fields involved. In effect, these consequences are restrictions on the admissible forms of the correlation functions describing the TRFs.