COMPOUND HAVING PHENYLACETYLENE STRUCTURE, LIQUID CRYSTAL...

Details COMPOUND HAVING PHENYLACETYLENE STRUCTURE, LIQUID CRYSTAL... COMPOUND HAVING PHENYLACETYLENE STRUCTURE, LIQUID CRYSTAL...

2005-02-01

2005-02-01

Wu, Shean C. (Department: 1756)

Compositions

Liquid crystal compositions

C252S299500, C252S299620, C549S043000, C570S187000

Reexamination Certificate

active

06849202

ABSTRACT:
There are disclosed novel compounds, liquid crystal compositions, polymers, optically anisotropic products, and optical or liquid crystal elements that have large refractive index anisotropy, mix easily with other liquid crystals, have advantageous stability against light, and exhibit absorption at practically short wavelength in the ultraviolet region. The compounds are represented by the formula (1) and have a phenylacetylene structure, wherein difference ΔE in energy of HOMO of parts (1-1), (1-2) and (1-3) calculated by the method of molecular orbitals is not less than 0.3 electronvolt, and the polarizability anisotropy Δα of a molecule represented by the formula (1) calculated in the same way is not lower than 500 A.U.:(A1to A4: H, F, alkyl or alkoxy group of C1 to C10 optionally substituted with F; P1, P2: structure fulfilling the conditions of HOMO energy and polarizability).

REFERENCES:
patent: 0 776 958 (1997-06-01), None
patent: 1020510 (2000-07-01), None
patent: 2-83340 (1990-03-01), None
patent: 9-216841 (1997-08-01), None
patent: 11-80090 (1999-03-01), None
patent: 11-116534 (1999-04-01), None
Sekine et al., Liquid Crystals, vol. 29, No. 3, pp. 355-367, (2002); Chemical Abstracts, Abstract No. 136:377729.
Wu et al., Japanese Journal of Applied Physics, Part 2: Letters, vol. 38, No. 3B, pp. L286-L288, (1999); Chemical Abstracts, Abstract No. 130:359572.
Zhou et al., J. Am. Chem. Soc., vol. 117, No. 26, pp. 7017-7018, (1995); Chemical Abstracts, Abstract No. 123:245685.
Kumar, S., Journal of the Chemical Society, Perkins Transactions 1, No. 9, pp. 1018-1023, (2001); Chemical Abstracts, Abstract No. 135:166746.
Wu et al., Applied Physics Letters, vol. 74, No. 3, pp. 344-346, (1999); Chemical Abstracts, Abstract No. 130:216217.
Sinkkonen et al., Int., J. Environ. Anal. Chem., vol. 50, No. 2, pp. 117-128, (1993); Chemical Abstracts, Abstract No. 120:217148.
Eberson et al., Acta Chemica Scandinavica, vol. 51, No. 4, pp. 492-500, (1997).
Miltsov et al., Organchalogen Compounds, vol. 19, pp. 133-135, (1994).
Jones et al., Phosphorus and Sulfur, vol. 35, No. 1-2, pp. 67-70, (1988).
Chambers et al., Tetrahedron, vol. 24, No. 10, pp. 3997-4005, (1968).
Gerdil et al., J. Am. Chem. Soc., vol. 88, No. 4, pp. 733-737, (1966).
Sekine et al., Liquid Crystals, vol. 29, No. 3, pp. 355-367, (2002).

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