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| - Density Functional Theory Study of the Conformational Space of Phenyl Benzoate,a Common Fragment in Many Mesogenic Molecules
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| - The complete conformational space of phenyl benzoate (three coupled rotors) has been studied by B3LYPdensity functional theory (DFT) at the 6-31+G* basis set level. The overall quality of the DFT results hasbeen checked via Möller−Plesset second-order perturbation theory (MP2) calculations performed on a fewsignificant molecular geometries. Contrary to the general belief, we have found that rotation around the C(O)−O bond is not more restricted than rotation around the C(O)−C bond. We have commented on thelocation and magnitude of the molecular dipole moment and their dependence on conformation. The energydata have been fitted through an expression containing a Fourier expansion plus a Lennard-Jones term, suitableto be used in computer simulations or to assist analysis of experimental data.
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