Liquid crystal birefringence and electric dipole moment relationship with temperature, weak magnetic field and molecular geometry.

Birefringence in the mesophase of 4-cyano-4′-n-pentylbiphenyl (5CB) was measured directly under a magnetic field (1200 and 2000 gauss) as a function of temperature with field parallel and perpendicular to the optical axis. Electrical dinole moments of 5CB and benzonitrile were calculated with the Me...

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Autores principales: López Iqlesias, M.C., Barón, M.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01677322_v44_n1_p63_LopezIqlesias
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_01677322_v44_n1_p63_LopezIqlesias2023-10-03T15:05:18Z Liquid crystal birefringence and electric dipole moment relationship with temperature, weak magnetic field and molecular geometry. López Iqlesias, M.C. Barón, M. Birefringence in the mesophase of 4-cyano-4′-n-pentylbiphenyl (5CB) was measured directly under a magnetic field (1200 and 2000 gauss) as a function of temperature with field parallel and perpendicular to the optical axis. Electrical dinole moments of 5CB and benzonitrile were calculated with the Mechetti-Barón equations from measurements at three temperatures. Molecular geometries were examined with a semiempirical procedure (AMPAC). The results suqgest that thermal stirring and internal rotations appear to overcome orientational effects of the applied field. © 1989. Fil:Barón, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01677322_v44_n1_p63_LopezIqlesias
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description Birefringence in the mesophase of 4-cyano-4′-n-pentylbiphenyl (5CB) was measured directly under a magnetic field (1200 and 2000 gauss) as a function of temperature with field parallel and perpendicular to the optical axis. Electrical dinole moments of 5CB and benzonitrile were calculated with the Mechetti-Barón equations from measurements at three temperatures. Molecular geometries were examined with a semiempirical procedure (AMPAC). The results suqgest that thermal stirring and internal rotations appear to overcome orientational effects of the applied field. © 1989.
format JOUR
author López Iqlesias, M.C.
Barón, M.
spellingShingle López Iqlesias, M.C.
Barón, M.
Liquid crystal birefringence and electric dipole moment relationship with temperature, weak magnetic field and molecular geometry.
author_facet López Iqlesias, M.C.
Barón, M.
author_sort López Iqlesias, M.C.
title Liquid crystal birefringence and electric dipole moment relationship with temperature, weak magnetic field and molecular geometry.
title_short Liquid crystal birefringence and electric dipole moment relationship with temperature, weak magnetic field and molecular geometry.
title_full Liquid crystal birefringence and electric dipole moment relationship with temperature, weak magnetic field and molecular geometry.
title_fullStr Liquid crystal birefringence and electric dipole moment relationship with temperature, weak magnetic field and molecular geometry.
title_full_unstemmed Liquid crystal birefringence and electric dipole moment relationship with temperature, weak magnetic field and molecular geometry.
title_sort liquid crystal birefringence and electric dipole moment relationship with temperature, weak magnetic field and molecular geometry.
url http://hdl.handle.net/20.500.12110/paper_01677322_v44_n1_p63_LopezIqlesias
work_keys_str_mv AT lopeziqlesiasmc liquidcrystalbirefringenceandelectricdipolemomentrelationshipwithtemperatureweakmagneticfieldandmoleculargeometry
AT baronm liquidcrystalbirefringenceandelectricdipolemomentrelationshipwithtemperatureweakmagneticfieldandmoleculargeometry
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