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Nishiyama, Isa; Yamamoto, Jun; Goodby, John W.; Yokoyama, Hiroshi

doi:10.1039/b105268n

Cited by 53 publications

(29 citation statements)

References 17 publications

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“…As shown in these examples, pre-organization [15] or a 'bottom-up' approach, is an important concept in the design of mesogenic molecules [1,16,17]. We have reported novel pre-organized systems, e.g.…”

Section: Introductionmentioning

confidence: 99%

Phase transition behaviour of novel Y‐shaped liquid crystal oligomers

2006

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We have designed novel liquid crystal oligomers in which three mesogenic units are connected via 3,5-dihydroxybenzoic acid. 4-Cyanobiphenyl-49-yl 3,5-bis{6-[4-(5-octylpyrimidin-2-yl)phenyloxy]hexyloxy}benzoate and 4-(5-octylpyrimidine-2-yl)phenyl 3,5-bis{6-[4-(5-octylpyrimidine-2-yl)phenyloxy]hexyloxy}benzoate have been prepared, and their physical properties investigated by optical microscopy and differential scanning calorimetry. The Yshaped liquid crystal oligomers were found to show a direct phase transition from isotropic liquid to anticlinic SmC (SmCanti) phase.

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Section: Introductionmentioning

confidence: 99%

Phase transition behaviour of novel Y‐shaped liquid crystal oligomers

2006

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“…The careful analysis of experimental data [76] and previous publications on MHPOBC shows that SmCg reveals properties that are similar to those of the FiLC. Moreover, such properties have been observed in many other compounds [33,35,43,67,, and this phase has been referred as SmC*, SmC;, and even SmC,*. There are factors that may confuse the precise identification of FiLC phase.…”

Section: The Successive Phase Transitions Inmentioning

confidence: 96%

The Structure and Properties of Antiferroelectric Liquid Crystals

Panarin

Vij

2000

Advances in Chemical Physics

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“…In chiral liquid crystalline systems, a variety of frustrated phases can occur and have been reported (8,9). Twist grain boundary (TGB) phases, which form as a result of the competition between stabilisation of the smectic layered structure and the tendency of molecules to form a helicoidal structure, and blue phases with a cubic structure (10,11) are examples of frustrated mesophases.…”

Section: Introductionmentioning

confidence: 98%

New chlorine‐substituted liquid crystals possessing frustrated TGB_A and SmQ phases

et al. 2008

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Several series of chlorine-substituted rod-like liquid crystalline compounds have been synthesised containing a different number of lactate units in the chiral chain. Sequences of phases and phase transition temperatures were determined by differential scanning calorimetry, polarising optical microscopy and X-ray diffraction studies. Depending on the molecule structure, the materials possess a rich variety of mesophases, i.e. the paraelectric chiral smectic A (SmA*), ferroelectric chiral smectic C (SmC*) and antiferroelectric smectic C (SmC A *) phases. Additionally, some compounds with one and two lactate groups exhibit the frustrated antiferroelectric twist grain boundary (TGB A ) and smectic Q (SmQ) phases, respectively. The existence of the SmQ phase ordered in two directions was confirmed by X-ray diffraction on a non-oriented sample. The effects of the non-chiral chain length and number of the chiral lactate groups on the mesomorphic properties, spontaneous polarisation, spontaneous tilt angle and complex permittivity have been studied and discussed.

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Cited by 53 publications

References 17 publications

Phase transition behaviour of novel Y‐shaped liquid crystal oligomers

Phase transition behaviour of novel Y‐shaped liquid crystal oligomers

The Structure and Properties of Antiferroelectric Liquid Crystals

New chlorine‐substituted liquid crystals possessing frustrated TGB_A and SmQ phases

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Untitled

Cited by 53 publications

References 17 publications

Phase transition behaviour of novel Y‐shaped liquid crystal oligomers

Phase transition behaviour of novel Y‐shaped liquid crystal oligomers

The Structure and Properties of Antiferroelectric Liquid Crystals

New chlorine‐substituted liquid crystals possessing frustrated TGBA and SmQ phases

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Product

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New chlorine‐substituted liquid crystals possessing frustrated TGB_A and SmQ phases