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Original Articles

Electro-optic and molecular relaxation behaviour of fluoro substituted achiral unsymmetrical four-ring bent-core mesogen

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Pages 635-641 | Received 18 Jul 2013, Accepted 27 Nov 2013, Published online: 03 Jan 2014

References

  • Niori T, Sekine T, Watanabe J, Furukawa T, Takezoe H. Distinct ferroelectric smectic liquid crystals consisting of banana shaped achiral molecules. J Mater Chem. 1996;6:1231–1233.
  • Link DR, Natale G, Shao R, Maclennan JE, Clark NA, Korblova E, Walba DM. Spontaneous formation of macroscopic chiral domains in a fluid smectic phase of achiral molecules. Science. 1997;278:1924–1927.
  • Takezoe H, Takanishi Y. Bent-core liquid crystals: their mysterious and attractive world. Jpn J Appl Phys. 2006;45:597–625.
  • Reddy RA, Tschierske C. Bent-core liquid crystals: polar order, superstructural chirality and spontaneous desymmetrisation in soft matter systems. J Mater Chem. 2006;16:907–961.
  • Ros MB, Serrano JL, de la Fuente MR, Folcia CL. Banana-shaped liquid crystals: a new field to explore. J Mater Chem. 2005;15:5093–5098.
  • Pelzl G, Diele S, Weissflog W. Banana-shaped compounds: a new field of liquid crystals. Adv Mater. 1999;11:707–724.
  • Pelzl G, Diele S, Jakli A, Weissflog W. The mysterious B7 phase: from its discovery up to the present stage of research. Liq Cryst. 2006;33:1513–1518.
  • Deb R, Nath RK, Paul MK, Rao NVS, Tuluri F, Shen Y, Shao R, Chen D, Zhu C, Smalyukh II, Clark NA. Four-ring achiral unsymmetrical bent core molecules forming strongly fluorescent smectic liquid crystals with spontaneous polar and chiral ordered B7 and B1 phases. J Mater Chem. 2010;20:7332–7336.
  • Weissflog W, Dunemann U, Tandel SF, Tamba MG, Kresse H, Pelzl G, Diele S, Baumeister U, Eremin A, Stern S, Stannarius R. At the boundary to banana-shaped liquid crystals: polar properties of phases formed by new asymmetric achiral four-ring bent-core mesogens. Soft Matter. 2009;5:1840–1847.
  • Yoon DK, Deb R, Chen D, Körblova E, Shao R, Ishikawa K, Rao NVS, Walba DM, Smalyukh II, Clark NA. Organization of the polarization splay modulated smectic liquid crystal phase by topographic confinement. Proc Nat Acad Sci. 2010;107:21311–21315.
  • Paul MK, Nath RK, Moths B, Pan LD, Wang S, Deb R, Shen Y, Rao NVS, Huang CC. Layer thinning transition in an achiral four-ring hockey stick shaped liquid crystal. Phase transit. 2012;85:1070–1078.
  • Nath RK, Sarkar DD, Shankar Rao DS, Rao NVS. Influence of polar substituents on the mesomorphism of non-symmetrical achiral four-ring bent-core compounds: synthesis and characterization. Liq Cryst. 2012;38:889–902.
  • Dunemann U, Schroder MW, Reddy RA, Pelzl G, Diele S, Weissflog W. The influence of lateral substituents on the mesophase behaviour of banana-shaped mesogens. Part II. J Mater Chem. 2005;15:4051–4061.
  • Dantlgraber G, Shen D, Diele S, Tschierske C. Antiferroelectric switchable mesophases of nonchiral bent-core liquid crystals containing fluorinated central cores. Chem Mater. 2002;14:1149–1158.
  • Shen D, Pegenau A, Diele S, Wirth I, Molecular TC. Design of nonchiral bent-core liquid crystals with antiferroelectric properties. J Am Chem Soc. 2000;122:1593–1601.
  • Shen D, Diele S, Wirth I, Tschierske C. A novel class of non-chiral banana-shaped liquid crystals with ferroelectric properties. Chem Commun. 1998;23:2573–2574.
  • Nguyen HT, Rouillon JC, Marcerou JP, Bedel JP, Barois P, Sarmento S. Mesomorphic and electro-optical properties of new achiral banana-shaped molecules. Mol Cryst Liq Cryst. 1999;328:177–184.
  • Weissflog W, Nadasi H, Dunemann U, Pelzl G, Diele S, Eremin A, Kresse H. Influence of lateral substituents on the mesophase behaviour of banana-shaped mesogens. J Mater Chem. 2001;11:2748–2758.
  • Reddy RA, Sadashiva BK. Influence of fluorine substituent on the mesomorphic properties of five-ring ester banana-shaped molecules. Liq Cryst. 2003;30:1031–1050.
  • Reddy RA, Raghunathan VA, Sadashiva BK. Novel Ferroelectric and antiferroelectric smectic and columnar mesophases in fluorinated symmetrical bent-core compounds. Chem Mater. 2005;17:274–283.
  • Rao NVS, Deb R, Paul MK, Francis T. Mesomorphism of a banana mesogen: influence of a fluoro substituent in the central core. Liq Cryst. 2009;36:977–987.
  • Reddy RA, Sadashiva BK. New phase sequences in banana-shaped mesogens: influence of fluorine substituent in compounds derived from 2,7-dihydroxynaphthalene. J Mater Chem. 2004;14:1936–1947.
  • Hunter CA, Sanders JKM. The nature of π–π interactions. J Am Chem Soc. 1990;11:25525–25534.
  • Neuvonen H, Neuvonen K, Pasanen P. Evidence of substituent-induced electronic interplay: effect of the remote aromatic ring substituent of phenyl benzoates on the sensitivity of the carbonyl unit to electronic effects of phenyl or benzoyl ring substituents. J Org Chem. 2004;69:3794–3800.
  • Boyd GD, Cheng J, Ngo PDT. Liquid‐crystal orientational bistability and nematic storage effects. Appl Phys Lett. 1980;36:556–558.
  • Clark NA, Lagerwall ST. Submicrosecond bistable electro‐optic switching in liquid crystals. Appl Phys Lett. 1980;36:899–901.
  • Fujikake H, Takazawa K, Kikuchi H, Fujii T, Kawakita M, Aida T. Polymer-stabilized ferroelectric liquid crystal devices with grayscale memory. Jpn J Appl Phys. 1997;366:449–6454.
  • Lee JH, Lim TK, Kwon YW, Jin JI. Memory effects in polymer stabilized ferroelectric liquid crystals, and their dependence on the morphology of the constituent molecules. J Appl Phys. 2005;970:84907–84907.
  • Kim JH, Yoneya M, Yokoyama H. Tristable nematic liquid-crystal device using micro-patterned surface alignment. Nature. 2002;420:159–162.
  • Barber R, Durand G. Electrochirally controlled bistable surface switching in nematic liquid crystals. Appl Phys Lett. 1991;58:2907–2909.
  • Chari K, Rankin CM, Johnson DM, Blanton TN, Capurso RG. Single-substrate cholesteric liquid crystal displays by colloidal self-assembly. Appl Phys Lett. 2006;88:43502–43502.
  • Lee SH, Park KH, Yoon TH, Kim JC. Bistable chiral-splay nematic liquid crystal device using horizontal switching. Appl Phys Lett. 2003;82:4215–4217.
  • Guo JX, Meng ZG, Wong M, Kwok HS. Three-terminal bistable twisted nematic liquid crystal displays. Appl Phys Lett. 2000;77:3716–3718.
  • Hong Z, Jin Y, Lee JH, Yoon TH, Choi EJ, Lee EW. Reversible greyscale memory effect of a bent-core liquid crystal. J Phys D: Appl Phys. 2011;44:5.
  • Schmalfuss H, Shen D, Tschierske C, Kresse H. Dielectric behaviour of the B1 phase. Liq Cryst. 2000; 27:1235–1238.
  • Schmalfuss H, Shen D, Tschierske C, Kresse H. Dielectric investigations of the B2 phase. Liq Cryst. 1999;26:1767–1770.
  • Salfetnikova J, Nadasi H, Weissflog W, Hauser A, Kresse H. Dielectric characterization of the B7 and Bx phase. Liq Cryst. 2002;29:115–119.
  • Kresse H, Schmalfuss H, Weissflog W. Characterization of the B6 phase by dielectric measurements. Liq Cryst. 2001;28:799–801.
  • Salfetnikova J, Schmalfuss H, Nadasi H, Weissflog W, Kresse H. Dielectric characterization of B3 and B4 phases. Liq Cryst. 2000;29:1663–1667.
  • Alaasar M, Prehm M, Nagaraj M, Vij JK, Tschierske C. A liquid crystalline phase with uniform tilt, local polar order and capability of symmetry breaking. Adv Mater. 2013;15:2189–2191.
  • Nagaraj M, Panarin YP, Manna U, Vij JK, Keith C, Tschierske C. Electric field induced biaxiliy and the electro-optic effect in a bent core nematic liquid crystal. Appl Phys Lett. 2010;96:11106–111063.
  • Panarin YP, Xu H, MacLaughadha ST, Vij JK. Dielectric response of ferroelectric liquid crystal cells. Jpn J Appl Phys. 1994;33:2648–2650.
  • Kovarova A, Kozmik V, Jiri S, Novotna V, Glograrova M, Pociecha D. Napthalene-based bent shaped liquid crystals with a semi fluorinated terminal chain. Liq Cryst. 2012;39:755–767.
  • Nagaven NG, Prasad V, Roy A. Azo functionalised achiral bent core liquid crystals: observation of photo-induced effects in B7 and B2 mesophases. Liq Cryst. 2013;40:1405–1416.
  • Kalinovskaya OE, Vij JK, Tretyakov YU, Panarin YP. Investigation of the thickness mode in surface stabilized ferroelectric liquid crystal cells. Liq Cryst. 1999;26:717–722.

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