The energy prediction for the proton exchange reactions of
benzene and ethylbenzene to the H-ZSM-5 zeolite with the
ONIOM(MP2:M06-2X) approach successfully reproduced the
experimental observations. The energies for the adsorption,
transition state, and product are computed to be -18.4, 12.6,
and-14.3 kcal/mol for benzene (see Figure 6) and-23.3, 4.6, and
-20.6 kcal/mol for ethylbenzene (see Figure 7), respectively.
The apparent activation energy (the same as the transition
structure’s relative energy) agrees well with the experimental data
for both reactions.47 We therefore propose that the combined
methodology of the ONIOM(MP2:M06-2X) method and the
5T:34T model is practical for the study of the framework effect
on the adsorption and the reaction for such molecules in the
zeolite pore.
The energy prediction for the proton exchange reactions of
benzene and ethylbenzene to the H-ZSM-5 zeolite with the
ONIOM(MP2:M06-2X) approach successfully reproduced the
experimental observations. The energies for the adsorption,
transition state, and product are computed to be -18.4, 12.6,
and-14.3 kcal/mol for benzene (see Figure 6) and-23.3, 4.6, and
-20.6 kcal/mol for ethylbenzene (see Figure 7), respectively.
The apparent activation energy (the same as the transition
structure’s relative energy) agrees well with the experimental data
for both reactions.47 We therefore propose that the combined
methodology of the ONIOM(MP2:M06-2X) method and the
5T:34T model is practical for the study of the framework effect
on the adsorption and the reaction for such molecules in the
zeolite pore.
การแปล กรุณารอสักครู่..
