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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| Formato: | Capítulo de libro |
| Lenguaje: | Inglés |
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1989
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| Acceso en línea: | Registro en Scopus DOI Handle Registro en la Biblioteca Digital |
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| LEADER | 04080caa a22004217a 4500 | ||
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| 003 | AR-BaUEN | ||
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| 008 | 190411s1989 xx ||||fo|||| 00| 0 eng|d | ||
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| 100 | 1 | |a López Iqlesias, M.C. | |
| 245 | 1 | 0 | |a Liquid crystal birefringence and electric dipole moment relationship with temperature, weak magnetic field and molecular geometry. |
| 260 | |c 1989 | ||
| 270 | 1 | 0 | |m López Iqlesias, M.C.; Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellon I, Ciudad Universitaria, 1428 Buenos Aires, Argentina |
| 504 | |a - P.G. de Gennes, The Physics of Liquid Crystals. Clarendon Press. Oxford; Chatelain, (1943) Rull. Soc. Fr. Miner. Crist., 66, p. 105 | ||
| 504 | |a Pellet, Chatelain, (1950) Bull. Soc. Fr. Miner. Cryst., 73, p. 154 | ||
| 504 | |a Bunning, Crellin, Faber, The effect of molecular biaxiality on the bulk properties of some nematic liquid crystals (1986) Liquid Crystals, 1 (1), pp. 37-51 | ||
| 504 | |a Takei, Yamaguchi, Osamura, Fuke, Kaya, Electronic spectra and molecular structure of biphenyl and para-substituted biphenyls in a supersonic jet (1989) The Journal of Physical Chemistry, 92, pp. 577-581. , and references therein cited | ||
| 504 | |a Ferraro, Estudio de la influencia de un campo magnético constante sobre el índice de refracción de un cristal líquido. Trabaios de Laboratorio II (1979) Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires | ||
| 504 | |a - Liquid Crystals. Data Sheet. BDH Chemicals Ltd. Poole, Great Britain; - The complete description of the temperature control device will be published elsewhere; Dewar, Thiel, (1977) J. Am. Chem. Soc., 99, p. 4899 | ||
| 504 | |a Barón, Vapor-phase dipole moment values from solution measurements (1985) The Journal of Physical Chemistry, 89, pp. 4873-4875 | ||
| 504 | |a Barón, Arévalo, (1928) J. Chem. Ed., 65, (7), pp. 644-645 | ||
| 504 | |a Smith, (1955) Electric Dipole Moments, , Butterworth Scientific Publ, London | ||
| 504 | |a - Riddick and Burger. Orgenic Solvents. Vol II. Pag. 412-Table 215; Cowley, Partington, (1936) J. Ch. Soc., p. 1192. , 1184-94 | ||
| 504 | |a Muller, Influence of the solvent on dipole-moments (1934) Transactions of the Faraday Society, 30, p. 729 | ||
| 506 | |2 openaire |e Política editorial | ||
| 520 | 3 | |a 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. |l eng | |
| 593 | |a Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellon I, Ciudad Universitaria, 1428 Buenos Aires, Argentina | ||
| 700 | 1 | |a Barón, Máximo | |
| 773 | 0 | |d 1989 |g v. 44 |h pp. 63-71 |k n. 1 |p J Mol Liq |x 01677322 |w (AR-BaUEN)CENRE-591 |t Journal of Molecular Liquids | |
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