Calculation of optical and dielectric anisotropy of nematic liquid crystals

被引：62

作者：

Klasen, M ^{[1
]}

Bremer, M

Gotz, A

Manabe, A

Naemura, S

Tarumi, K

机构：

[1] Merck KGaA, Liquid Crystal Div, Liquid Crystal Res, D-64271 Darmstadt, Germany

[2] Merck Japan Ltd, Liquid Crystal Tech Ctr, Kanagawa, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1998年 / 37卷 / 8A期

关键词：

nematic liquid crystal; optical anisotropy; dielectric anisotropy; molecular modelling;

D O I：

10.1143/JJAP.37.L945

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The optical birefringence (Delta n) and dielectric anisotropy las) of nematic liquid crystals were calculated using the well-known theories of Vuks and Maier-Meier, respectively. The molecular dipole moments and polarizabilities needed for the estimation were taken from semiempirical AM1 calculations. The calculated values are in good agreement wig the experimental results for the investigated compounds having different core structures and polar substituents.

引用

页码：L945 / L948

页数：4

共 9 条

[1]

[Anonymous], HDB LIQUID CRYSTALS

[2]

BOETTCHER CJF, 1978, THEORY ELECT POLARIZ, V2

[3] GAS-PHASE MOLECULAR MODELING OF LIQUID-CRYSTALS - ELECTROOPTICAL ANISOTROPIES [J].

BREMER, M ;

TARUMI, K .

ADVANCED MATERIALS, 1993, 5 (11) :842-848

[4] THE DEVELOPMENT AND USE OF QUANTUM-MECHANICAL MOLECULAR-MODELS .76. AM1 - A NEW GENERAL-PURPOSE QUANTUM-MECHANICAL MOLECULAR-MODEL [J].

DEWAR, MJS ;

ZOEBISCH, EG ;

HEALY, EF ;

STEWART, JJP .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1985, 107 (13) :3902-3909

[5] POLARIZATION-FIELD AND ORIENTATIONAL ORDER IN LIQUID-CRYSTALS [J].

MADHUSUDANA, NV .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1980, 59 (1-2) :117-120

[6] EINE EINFACHE THEORIE DER DIELEKTRISCHEN EIGENSCHAFTEN HOMOGEN ORIENTIERTER KRISTALLINFLUSSIGER PHASEN DES NEMATISCHEN TYPS [J].

MAIER, W ;

MEIER, G .

ZEITSCHRIFT FUR NATURFORSCHUNG PART A-ASTROPHYSIK PHYSIK UND PHYSIKALISCHE CHEMIE, 1961, 16 (03) :262-267

[7] Estimating dielectric anisotropy of liquid crystal compounds [J].

Saitoh, G ;

Satoh, M ;

Hasegawa, E .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1997, 301 :13-18

[8] Recent liquid crystal material development for active matrix displays [J].

Tarumi, K ;

Bremer, M ;

Geelhaar, T .

ANNUAL REVIEW OF MATERIALS SCIENCE, 1997, 27 :423-441

[9]

VUKS MF, 1966, OPT SPECTROSC-USSR, V20, P361

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