References
- Link DR, Natale G, Shao R, et al. Spontaneous formation of macroscopic chiral domains in a fluid smectic phase of achiral molecules. Science. 1997;278:1924–1927.
- Niori T, Sekine T, Watanabe J, et al. Distinct ferroelectric smectic liquid crystals consisting of banana shaped achiral molecules. J Mater Chem. 1996;6:1231–1233.
- Takezoe H, Takanishi Y. Bent-core liquid crystals: their mysterious and attractive world. Jap J Appl Chem. 2006;45:597–625.
- Tschierske C, Photinos DJ. Biaxial nematic phases. J Mater Chem. 2010;20:4263‒4294.
- Weissflog W, Naumann G, Kosata B, et al. Ten isomeric five-ring bent-core mesogens: the influence of the direction of the carboxyl connecting groups on the mesophase behaviour. J Mater Chem. 2005;15:4328–4337.
- Amarantha Reddy R, Tschierske C. Bent-core liquid crystals: polar order, superstructural chirality and spontaneous desymmetrisation in soft matter systems. J Mater Chem. 2006;16:907–961.
- Weissflog W, Shreenivasa Murthy HN, Diele S, et al. Relationships between molecular structure and physical properties in bent-core mesogens. Phil Trans R Soc A. 2006;364:2657–2679.
- Pelzl G, Diele S, Jákli A, et al. Helical superstructures in a novel smectic mesophase formed by achiral banana-shaped molecules. Liq Cryst. 1999;26:135–139.
- Umadevi S, Sadashiva BK. New five-ring symmetrical bent-core mesogens exhibiting the fascinating B7 phase. Liq Cryst. 2005;32:1233–1241.
- Szydlowska J, Mieczkowski J, Matraszek J, et al. Bent-core liquid crystals forming two- and three-dimensional modulated structures. Phys Rev E. 2003;67(1–5):031702.
- Gorecka E, Vaupotič N, Pociecha D, et al. Switching mechanism in polar columnar mesophases made of bent-core molecules. Chem Phys Chem. 2005;6:1087–1093.
- Gorecka E, Vaupotic N, Pociecha D. Electron density modulations in columnar banana phases. Chem Mater. 2007;19:3027‒3031.
- Roy A, Gupta M, Radhika S, et al. Strain glass analogue in a bent-core liquid crystal exhibiting the dark conglomerate phase. Soft Matter. 2012;8:7207‒7214.
- Ocak H, Bilgin-Eran B, Prehm M, et al. Bent-core compounds with two branched chains: evidence of a new dark conglomerate mesophase. Soft Matter. 2013;9:4590‒4597.
- Imrie CT, Henderson PA. Liquid crystal dimers and higher oligomers: between monomers and polymers. Chem Soc Rev. 2007;36:2096–2124.
- Donaldson T, Henderson PA, Achard MF, et al. Non-symmetric chiral liquid crystal trimers. Liq Cryst. 2011;38:1331–1339.
- Donaldson TB, Henderson PA, Achard MF, et al. Chiral liquid crystal tetramers. J Mater Chem. 2011;21:10935.
- Imrie CT, Luckhurst GR. Liquid crystal dimers and oligomers. In: Goodby JW, Collings PJ, Kato T, et al., editors. Handbook of liquid crystals. Vol. 7. Weinheim: Wiley-VCH; 2014. p. 137–210.
- Sebastian N, Lopez DO, Robles-Hernandez B, et al. Dielectric, calorimetric and mesophase properties of 1′′-(2′,4-difluorobiphenyl-4′-yloxy)-9′′-(4-cyanobiphenyl-4′-yloxy) nonane: an odd liquid crystal dimer with a monotropic mesophase having the characteristics of a twist-bend nematic phase. Phys Chem Chem Phys. 2014;16:21391–21406.
- Tamba MG, Salili SM, Zhang C, et al. A fibre forming smectic twist–bent liquid crystalline phase. RSC Adv. 2015;5:1274‒1281.
- Paterson DA, Abberley JP, Harrison WTA, et al. Cyanobiphenyl-based liquid crystal dimers and the twist-bend nematic phase. Liq Cryst. 2017;44:127–146.
- Alaasar M, Tschierske C. Non-symmetric ether-linked liquid crystalline dimers with a highly polar end group. Liq Cryst. 2017;44:387–393.
- Abberley JP, Jansze SM, Walker R, et al. Structure–property relationships in twist-bend nematogens: the influence of terminal groups. Liq Cryst. 2017;44:68–83.
- Mandle RJ. The dependency of twist-bend nematic liquid crystals on molecular structure: from dimers to trimers, oligomers and polymers. Soft Matter. 2016;12:7883–7901.
- Archbold CT, Mandle RJ, Andrews JL, et al. Conformational landscapes of bimesogenic compounds and their implications for the formation of modulated nematic phases. Liq Cryst. 2017;44:2079–2088.
- Abberley JP, Killah R, Walker R, et al. Heliconical smectic phases formed by achiral molecules. Nat Commun. 2018;9:228.
- Pan S, Mu B, Zhou Y, et al. Competition and compromise between discotic and calamitic mesogens in triphenylene and azobenzene based shape-amphiphilic liquid crystals. RSC Adv. 2016;6:49556‒49566.
- Gimeno N, Ros MB. Chemical structures, mesogenic properties, and synthesis of liquid crystals with bent-core structure. In: Goodby JW, Collings PJ, Kato T, et al., editors. Handbook of liquid crystals. Vol. 4. Weinheim: Wiley-VCH; 2014. p. 603–679.
- Sebastián N, Gimeno N, Vergara J, et al. Bent-rod liquid crystal dimers: synthesis and mesomorphic properties. J Mater Chem C. 2014;2:4027‒4036.
- Hegguilustoy CM, Darda MB, Montani RS, et al. Symmetric bent-shaped liquid crystal dimers showing transitions between optically uniaxial and biaxial smectic phases. Liq Cryst. 2015;42:1013–1023.
- Yelamaggad CV, Prasad SK, Nair GG, et al. A low-molar-mass, monodispersive, bent-rod dimer exhibiting biaxial nematic and smectic A phases. Angew Chem Int Ed. 2004;43:3429–3432.
- Nagaveni NG, Prasad V, Roy A. Azo-functionalised liquid crystalline dimers composed of bent-core and rod-like moieties: synthesis and mesomorphic properties. Liq Cryst. 2013;40:1001–1003015.
- Tamba MG, Baumeister U, Pelzl G, et al. Banana-calamitic dimers: further variations of the bent-core mesogenic unit. Ferroelectrics. 2014;468:52–76.
- Horčic M, Svoboda J, Seidler A, et al. W-shaped liquid crystalline dimers. RSC Adv. 2016;6:41972–41981.
- Horčic M, Svoboda J, Novotná V, et al. Core-to-core dimers forming switchable mesophase. Chem Commun. 2017;53:2721–2724.
- Horčic M, Svoboda J, Novotná V, et al. Bent-core dimers with top- to-bottom linkage between central units. RSC Adv. 2018;8:22974–22985.
- Shanker G, Prehm M, Tschierske C. Laterally connected bent-core dimers and bent-core-rod couples with nematic liquid crystalline phases. J Mater Chem. 2012;22:168–174.
- Kosata B, Tamba GM, Baumeister U, et al. Liquid-crystalline dimers composed of bent-core mesogenic units. Chem Mater. 2006;18:691–701.
- Radhika S, Sadashiva BK, Raghunathan VA. Apolar novel mesogenic symmetric dimers composed of five-ring bent-core monomeric units. Liq Cryst. 2013;40:1209–1222.
- Umadevi S, Sadashiva BK, Shreenivasa Murthy HN, et al. Mesogenic dimers composed of bent-core molecules with flexible alkylene spacer. Soft Mater. 2006;2:210–214.
- Umadevi S, Sadashiva BK. Liquid crystalline properties and dependence of transition temperatures on the length of the flexible alkylene spacer of symmetric dimers composed of bent-core units. Liq Cryst. 2007;34:673–681.
- Dantlgraber G, Diele S, Tschierske C. The first liquid crystalline dimers consisting of two banana-shaped mesogenic units: a new way for switching between ferroelectricity and antiferroelectricity with bent-core molecules. Chem Commun. 2002;2768–2769.
- Achten R, Koudijs A, Giesbers M, et al. Liquid crystalline dimers with bent‐core mesogenic units. Liq Cryst. 2007;34:59–64.
- Keith C, Amaranatha Reddy R, Baumeister U, et al. Continuous transition from antiferroelectric to ferroelectric switching liquid crystalline phases in two homologous series of bent-core mesogenic dimers based on carbosilane spacer units. J Mater Chem. 2006;16:3444–3447.
- Zhang L-Y, Zhang Q-K, Zhang Y-D. Design, synthesis, and characterisation of symmetrical bent-core liquid crystalline dimers with diacetylene spacer. Liq Cryst. 2013;40:1263–1273.
- Henderson PA, Imrie CT. Non-symmetric liquid crystal trimers. Liq Cryst. 2005;32:673–682.
- Henderson PA, Imrie CT. Liquid crystal tetramers: influence of molecular shape on liquid crystal. Liq Cryst. 2005;32:1531–1541.
- Dantlgraber G, Eremin A, Diele S, et al. Chirality and macroscopic polar order in a ferroelectric smectic liquid-crystalline phase formed by achiral polyphilic bent-core molecules. Angew Chem Int Ed. 2002;41:2408–2412.