Influence of fluorination and chain length on the static dielectric properties of nematogenic bi-cyclohexyl phenyl derivatives

References

• Bahadur B. Liquid crystals applications and uses. Singapore: World Scientific; 1991.
   Google Scholar
• Heilmeier GH, Zanoni LA. Guest‐host interactions in nematic liquid crystals: a new electro-optic effect. Appl Phys Lett. 1968;13:91–92.
   Web of Science ®Google Scholar
• Marino S, Castriota M, Bruno V, et al. Changes of the electro-optic response of nematic liquid crystal cells due to inserted titania-vanadia films. J Appl Phys. 2005;97:013523-1–013523-8.
   Web of Science ®Google Scholar
• Oh-e M, Kondo K. Response mechanism of nematic liquid crystals using the in‐plane switching mode. Appl Phys Lett. 1996;69:623–625.
   Web of Science ®Google Scholar
• Muenster R, Jarasch M, Zhuang X, et al. Induced enhancement of optical nonlinearity in liquids and liquid crystals. Phys Rev Lett. 1997;78:42–45.
   Web of Science ®Google Scholar
• Goto Y, Ogawa T, Swada S, et al. Fluorinated liquid crystals for active matrix displays. Mol Cryst Liq Cryst. 1991;209:1–7.
   Web of Science ®Google Scholar
• Demus D, Goto Y, Sawada S, et al. Trifluorinated liquid crystals for TFT displays. Mol Cryst Liq Cryst. 1995;260:1–21.
   Web of Science ®Google Scholar
• Nishi T, Matsubara A, Okada H, et al. Relationship between molecular structure and temperature dependence of threshold voltage in fluorinated liquid crystals. Jpn J Appl Phys. 1995;34:236–239.
   Web of Science ®Google Scholar
• Petrov VF. Liquid crystals for AMLCD and TFTPDLCD applications. Liq Cryst. 1995;19:729–741; Petrov VF, Torgova SI, Karamysheva LA, et al. The trans-1,4-cyclohexylene group as a structural fragment in liquid crystals. Liq Cryst. 1999;26:1141–1162.
   Web of Science ®Google Scholar
• Gauza S, Wang H, Wen CH, et al. High birefringence isothiocyanato tolane liquid crystals. Jpn J Appl Phys. 2003;42:3463–3466.
   Web of Science ®Google Scholar
• Gasowska JS, Cowling SJ, Cockett MCR, et al. The influence of an alkenyl terminal group on the mesomorphic behavior and electro-optic properties of fluorinated terphenyl liquid crystals. Mater Chem. 2010;20:299–307.
   Web of Science ®Google Scholar
• Ishikawa H, Toda A, Okada H, et al. Relationship between order parameter and physical constants in fluorinated liquid crystals. Liq Cryst. 1997;22:743–747.
   Web of Science ®Google Scholar
• Hird M. Fluorinated liquid crystals – properties and applications. Chem Soc Rev. 2007;36:2070–2095.
   PubMed Web of Science ®Google Scholar
• Klasen M, Bremer M, Gotz A, et al. Calculation of optical and dielectric anisotropy of nematic liquid crystals. Jpn J Appl Phys. 1998;37:L945–L948.
   Web of Science ®Google Scholar
• Hori K, Maeda M, Yano M, et al. The effect of fluorination (2): dependence of alkyl chain length on the crystal structures of mesogenic alkyl 4-[2-(perfluorohexyl) ethoxy] benzoates. Liq Cryst. 2011;38:287–293.
   Web of Science ®Google Scholar
• Cargill MR, Sandford G, Tadeusiak AJ, et al. Highly fluorinated biphenyl ether systems as dopants for fast response liquid crystal display applications. Liq Cryst. 2011;38:1069–1078.
   Web of Science ®Google Scholar
• Haldar S, Dey KC, Sinha D, et al. X-ray diffraction and dielectric spectroscopy studies on a partially fluorinated ferroelectric liquid crystal from the family of terphenyl esters. Liq Cryst. 2012;39:1196–1203.
   Web of Science ®Google Scholar
• Bartmann E, Dorsch D, Finkenzeller U, et al. Liquid crystal with polar substituents containing fluorine: synthesis and physical properties. Mol Cryst Liq Cryst. 1991;204:77–89.
   Google Scholar
• Devi A, Choudhury B, Bhattacharjee A, et al. Study of optical parameters of two fluorinated isothiocyanato nematic liquid crystals exhibiting high birefringence. Opto Electron Rev. 2014;22:24–30.
   Google Scholar
• Gauza S, Jiao M, Wu ST, et al. High birefringence and low viscosity negative dielectric anisotropy liquid crystals. Liq Cryst. 2008;204:1401–1408.
   Google Scholar
• Tabayashi K, Akasaka K. Preliminary communication. Natural abundance 2H NMR for liquid crystal studies: deuterium isotope effect on microscopic order. Liq Cryst. 1999;26:127–129.
   Web of Science ®Google Scholar
• Ma H, Xu J, Okada H, et al. Temperature characteristic of permittivity and splay elastic constant for fluorinated liquid crystal mixtures. Current Applied Physics. 2013;13:814–818.
   Google Scholar
• Schad H, Kelly SM. Nematic 4-cyanophenyl esters incorporating a lateral fluorine atom. J Physique. 1985;46:1395–1404.
   Google Scholar
• Biswas S, Haldar S, Mandal PK, et al. X-ray diffraction and optical birefringence studies on four nematogenic difluorobenzene derivatives. Liq Cryst. 2007;34:365–372.
   Web of Science ®Google Scholar
• Haldar S, Barman S, Mandal PK, et al. Influence of molecular core structure and chain length on the physical properties of nematogenic fluorobenzene derivatives. Mol Cryst Liq Cryst. 2010;528:81–95.
   Web of Science ®Google Scholar
• Jadzcyn J, Czerkas S, Czechowski G, et al. On the molecular interpretation of the static dielectric properties of nematic liquid crystals. Liq Cryst. 1999;26:437–442.
   Web of Science ®Google Scholar
• Blinov LM, Chigrinov VG. Electro-optic effects in liquid crystal materials. New York (NY): Springer; 1996.
   Google Scholar
• Schadt M. Liquid crystal materials and liquid crystal displays. Annu Rev Mater Sci. 1997;27:305–379.
   Web of Science ®Google Scholar
• Kundu B, Pal SK, Kumar S, et al. Splay and bend elastic constants in the nematic phase of some disulfide bridged dimeric compounds. Phys Rev E. 2010;82:061703-1–061703-9.
   Web of Science ®Google Scholar
• Bata L, Buka A. Dielectric permittivity and relaxation phenomena in smectic phases. Mol Cryst Liq Cryst. 1981;63:307–320.
   Web of Science ®Google Scholar
• Ratna BR, Shashidhar R. Dielectric studies on liquid crystals of strongly positive dielectric anisotropy. Mol Cryst Liq Cryst. 1977;42:113–125.
   Web of Science ®Google Scholar
• Ratna BR, Shashidhar R. Dielectric properties of some nematics of positive dielectric anisotropy. Mol Cryst Liq Cryst. 1978;45:103–116.
   Web of Science ®Google Scholar
• Schadt M. Dielectric properties of some nematic liquid crystals with strong positive dielectric anisotropy. J Chem Phys. 1972;56:1494–1497.
   Web of Science ®Google Scholar
• de Jeu WH, Lathouwers TW, Constants D. Molecules structure of nematic liquid crystals. I. Terminally substituted azobenzene and azoxybenzenes. Z. Naturforsch. 1974;29a:905–911.
   Google Scholar
• Haldar S, Mandal PK, Goubitz K, et al. X-ray structural analysis in the crystalline phase of a nematogenic fluoro-phenyl compound. Mol Cryst Liq Cryst. 2008;490:80–87.
   Web of Science ®Google Scholar
• Madhusudana NV, Chandrasekhar S. The role of permanent dipoles in nematic order. Pramana. 1975;1:57–68.
   Web of Science ®Google Scholar
• Sinha D, Mandal PK, Dabrowski R. High birefringence laterally fluorinated terphenyl isothiocyanates: structural, optical and dynamical properties. Physica B 2014;441:100–106.
   Web of Science ®Google Scholar
• Sinha D, Goswami D, Mandal PK, et al. On the nature of molecular associations, static permittivity and dielectric relaxation in a uniaxial nematic liquid crystal. Mol Cryst Liq Cryst. 2014;562:156–165.
   Web of Science ®Google Scholar
• Sinha D, Mandal PK, Dabrowski R. Structural, optical and dynamical properties of a high birefringence laterally fluorinated terphenyl isothiocyanate. Phase Transit. 2015;88:153–168.
   Web of Science ®Google Scholar
• Bordewijk P. Extension of the Kirkwood–Fröhlich theory of the static dielectric permittivity to anisotropic liquids. Physica. 1974;75:146–156.
   Google Scholar