Synthesis and spatial structure of new chiral dopants from allobetuline series for cholesteric liquid-crystal compositions

被引：12
|
作者：
Babak, Nikolay L. [1 ]
Shishkin, Oleg V. [1 ,2 ]
Shishkina, Svitlana V. [1 ,3 ]
Gella, Ivan M. [1 ,3 ]
Musatov, Vladimir I. [1 ]
Novikova, Nataliya B. [1 ]
Lipson, Victoria V. [1 ,2 ,3 ]
机构：
[1] Natl Acad Sci Ukraine, State Sci Inst Inst Single Crystals, UA-61001 Kharkov, Ukraine
[2] Natl Acad Med Sci Ukraine, State Inst V Ya Danilevsky Inst Endocrine Pathol, Dept Med Chem, Artema St 10, UA-61002 Kharkov, Ukraine
[3] Kharkov Natl Univ, 4 Svobody Sq, UA-61122 Kharkov, Ukraine
来源：
STRUCTURAL CHEMISTRY | 2016年 / 27卷 / 01期
关键词：
Allobetuline derivatives; Chiral dopants for cholesteric liquid-crystal compositions; Helical twisting power; Molecular structure; Quantum-chemical calculations; INDUCED HELICAL STRUCTURE; ALPHA; BETA-UNSATURATED KETONES; DERIVATIVES; SYSTEMS; COMPONENTS;
D O I：
10.1007/s11224-015-0700-y
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
New series of chiral dopants for cholesteric liquid-crystal compositions were synthesized on the base of 2-substituted allobetuline derivatives, and their steric structure was determined by X-ray analysis. The relationship between spatial structure of these compounds and their ability to induce cholesteric helix in 4-pentyl-4'-cyanobiphenyl nematic solvent was examined. The highest values of the helical twisting power |beta| (71.38 +/- A 3.4) and (84.25 +/- A 3.7) mkm(-1) mol center dot pats(-1) showed (E)-2-(4-chlorophenylmethylidene)-allobetuline and (2R,3R)-3-(4'-chlorophenyl)-2,2'-spiro-oxyranoallobetuline correspondingly. How the value of |beta| in this series of compounds varies depending on the spatial arrangement relative to the aryl moiety of the chiral core is shown.
引用
收藏
页码：295 / 303
页数：9
相关论文
共 50 条
  • [11] New chiral liquid crystal monomers and cholesteric polyacrylates: synthesis and characterisation
    Hu, Jian-She
    Li, Qun
    Liu, Yi-Nan
    Song, Ya-Ting
    Li, Wuyuntana
    LIQUID CRYSTALS, 2013, 40 (08) : 1095 - 1104
  • [12] STRUCTURE OF A HYBRID ALIGNED CHOLESTERIC LIQUID-CRYSTAL CELL
    DOZOV, I
    PENCHEV, I
    JOURNAL DE PHYSIQUE, 1986, 47 (03): : 373 - 377
  • [13] Optical behaviour of cholesteric liquid crystal cells with novel photoisomerizable chiral dopants
    Liu, Jui-Hsiang
    Yang, Po-Chih
    Wang, Yu-Kan
    Wang, Chien-Chih
    LIQUID CRYSTALS, 2006, 33 (03) : 237 - 248
  • [14] SYNTHESIS AND PROPERTIES OF CHOLESTERIC LIQUID-CRYSTAL CROWN ETHERS
    XIE, MG
    CHEN, YY
    HE, YE
    MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1991, 209 : 213 - +
  • [15] SYNTHESIS AND PROPERTIES OF NEW CHIRAL DOPANTS CONTAINING A DELTA-LACTONE RING FOR PRACTICAL FERROELECTRIC LIQUID-CRYSTAL MIXTURES
    IKEMOTO, T
    KAGEYAMA, Y
    ONUMA, F
    SHIBUYA, Y
    ICHIMURA, K
    SAKASHITA, K
    MORI, K
    LIQUID CRYSTALS, 1994, 17 (05) : 729 - 739
  • [16] Synthesis of Chiral Azobenzene and Their Effect on Cholesteric Liquid Crystal
    Ding, Hangjun
    Mu, Lina
    Yang, Zhou
    Yang, Huai
    ENERGY AND POWER TECHNOLOGY, PTS 1 AND 2, 2013, 805-806 : 1340 - +
  • [17] Cholesteric liquid crystal inductive asymmetric polymerization: Synthesis of chiral polythiophene derivatives from achiral monomers in a cholesteric liquid crystal
    Goto, Hiromasa
    MACROMOLECULES, 2007, 40 (05) : 1377 - 1385
  • [18] SPECTRAL WIDTH OF REFLECTION FROM A CHOLESTERIC LIQUID-CRYSTAL
    CHANDRASEKHAR, S
    RANGANATH, GS
    MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1974, 25 (1-2): : 195 - 197
  • [19] Cholesteric liquid crystal doped with a new chiral azobenzene
    Ding, Hangjun
    Mu, Lina
    Yang, Zhou
    Yang, Huai
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2014, 248
  • [20] OPTICAL REFLECTION FROM CHOLESTERIC LIQUID-CRYSTAL FILMS
    PRASAD, JS
    OPTICS COMMUNICATIONS, 1974, 12 (04) : 389 - 391
12345