Influence of the molecular interaction in the value of molecular volume for the isotropic-nematic transition of p-azoxianisol using the model HERSW in conjuntion with IPCM model
Mendoza Huizar, Luis Humberto
2012
Garcia-Sanchez, E.; Gonzalez-Cabrera, A. E.;Mendoza-Huizar, L. H.; De Lira Gomez, R. (2012, DIC), Influence of the molecular interaction in the value of molecular volume for the isotropic-nematic transition of p-azoxianisol using the model HERSW in conjuntion with IPCM model. AFINIDAD, 69(560), 259-265. ISSN 0001-9704
Abstract
In this work, we analyzed the experimental pressure-temperature behavior in the Isotropic-Nematic phase transition for the liquid crystal p-azoxianisol at 1 atm using a development for the HERSW Conveg Peg model. Additionally, we obtained the values of the molecular volumes for the hard and attractive cores from theoretical quantum calculations at PM3, PM6 and B3LYP/6-311++G levels considering the molecular interaction among the liquid crystals (PAA)(5). We found that the best prediction for experimental data appears when the effect of the molecular interaction is considered in the volume calculation.
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