Banana-shaped mesogens:: a new homologous series of compounds exhibiting the B7 mesophase

被引：33
|
作者：
Murthy, HNS [1 ]
Sadashiva, BK [1 ]
机构：
[1] Raman Res Inst, Bangalore 560080, Karnataka, India
来源：
LIQUID CRYSTALS | 2003年 / 30卷 / 09期
关键词：
D O I：
10.1080/0267829031000152996
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The synthesis and characterization of a new homologous series of compounds, the 2-cyano1,3-phenylene bis[4-(4-n-alkoxyphenyliminomethyl)benzoates] derived from 2-cyanoresorcinol is reported. All the compounds are enantiotropic mesogens and exhibit the fascinating B-7 mesophase. The characterization of the mesophase was performed using polarizing optical microscopy, differential scanning calorimetry, X-ray diffraction and electro-optical studies.
引用
收藏
页码：1051 / 1055
页数：5
相关论文
共 44 条
  • [21] New Achiral Non Symmetric Banana-Shaped Mesogens: Mesomorphic and Electro-Optical Properties
    Bedel, J.P.
    Nguyen, H.T.
    Rouillon, J.C.
    Marcerou, J.P.
    Sigaud, G.
    Barois, P.
    Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, 332 : 163 - 171
  • [22] New phase sequences in banana-shaped mesogens: influence of fluorine substituent in compounds derived from 2,7-dihydroxynaphthalene
    Reddy, RA
    Sadashiva, BK
    JOURNAL OF MATERIALS CHEMISTRY, 2004, 14 (13) : 1936 - 1947
  • [23] Banana-shaped mesogens:: observation of a direct transition from the antiferroelectric B2 to nematic phase
    Reddy, RA
    Sadashiva, BK
    Dhara, S
    CHEMICAL COMMUNICATIONS, 2001, (19) : 1972 - 1973
  • [24] New five-ring symmetrical bent-core mesogens exhibiting the fascinating B7 phase
    Umadevi, S
    Sadashiva, K
    LIQUID CRYSTALS, 2005, 32 (10) : 1233 - 1241
  • [25] Study of phase situation in a banana-shaped 7OSOR compound from thiobenzoate series
    Ossowska-Chrusciel, M. D.
    Sikorska, A.
    Rudzki, A.
    Pastor, P.
    Przedmojski, J.
    Chrusciel, J.
    PHASE TRANSITIONS, 2007, 80 (03) : 253 - 272
  • [26] The carbosilane unit as a stable building block for liquid crystal design: a new class of ferroelectric switching banana-shaped mesogens
    Keith, C
    Reddy, RA
    Hahn, H
    Lang, H
    Tschierske, C
    CHEMICAL COMMUNICATIONS, 2004, (17) : 1898 - 1899
  • [27] Photo and electrically switchable B7 mesophase exhibiting asymmetric bent-core liquid crystals
    Srinivasan, Murugesan Vijay
    Kannan, Palaninathan
    Roy, Arun
    NEW JOURNAL OF CHEMISTRY, 2013, 37 (05) : 1584 - 1590
  • [28] Transitions between the B2 phase and more usual smectic phases in binary systems of banana-shaped with calamitic mesogens
    Schröder, MW
    Diele, S
    Pelzl, G
    Pancenko, N
    Weissflog, W
    LIQUID CRYSTALS, 2002, 29 (08) : 1039 - 1046
  • [29] Detailed optical studies of several banana-shaped compounds in liquid crystal B2 phase
    Olson, D.A.
    Cady, A.
    Weissflog, W.
    Nguyen, H.T.
    Huang, C.C.
    Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 2001, 64 (5 I): : 1 - 051713
  • [30] Detailed optical studies of several banana-shaped compounds in liquid crystal B2 phase
    Olson, DA
    Cady, A
    Weissflog, W
    Nguyen, HT
    Huang, CC
    PHYSICAL REVIEW E, 2001, 64 (05):
12345