A new room temperature dark conglomerate mesophase formed by bent-core molecules combining 4-iodoresorcinol with azobenzene units

被引:32
作者
Alaasar, Mohamed [1 ,2 ]
Prehm, Marko [1 ]
Tschierske, Carsten [1 ]
机构
[1] Univ Halle Wittenberg, Inst Chem, D-06120 Halle, Germany
[2] Cairo Univ, Fac Sci, Dept Chem, Giza, Egypt
关键词
LIQUID-CRYSTALLINE PHASE; BANANA-SHAPED MOLECULES; ACHIRAL MOLECULES; POLAR ORDER; SYMMETRY-BREAKING; CHIRAL DOMAINS;
D O I
10.1039/c3cc45938a
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The first bent-core molecules comprising 4-iodoresorcinol as the central core unit and incorporating azobenzene units have been synthesized. A new type of dark conglomerate phase (DC phase) is observed, which remains over a wide temperature range down to room temperature without crystallization.
引用
收藏
页码:11062 / 11064
页数:3
相关论文
共 30 条
[1]   Influence of halogen substituent on the mesomorphic properties of five-ring banana-shaped molecules with azobenzene wings [J].
Alaasar, M. ;
Prehm, M. ;
Tschierske, C. .
LIQUID CRYSTALS, 2013, 40 (05) :656-668
[2]   A Liquid Crystalline Phase with Uniform Tilt, Local Polar Order and Capability of Symmetry Breaking [J].
Alaasar, Mohamed ;
Prehm, Marko ;
Nagaraj, Mamatha ;
Vij, Jagdish K. ;
Tschierske, Carsten .
ADVANCED MATERIALS, 2013, 25 (15) :2186-2191
[3]  
Amabiliino D. B., 2009, CHIRALITY NANOSCALE
[4]   Photoisomerization in different classes of azobenzene [J].
Bandara, H. M. Dhammika ;
Burdette, Shawn C. .
CHEMICAL SOCIETY REVIEWS, 2012, 41 (05) :1809-1825
[5]   Odd-even effect in biphenyl-based symmetrical dimers with methylene spacer -: evidence of the B4 phase [J].
Bialecka-Florjanczyk, Ewa ;
Sledzinska, Irma ;
Gorecka, Ewa ;
Przedmojski, Jan .
LIQUID CRYSTALS, 2008, 35 (04) :401-406
[6]   Halogen-bonded liquid crystals [J].
Bruce, Duncan W. .
HALOGEN BONDING: FUNDAMENTALS AND APPLICATIONS, 2008, 126 :161-180
[7]   Chirality-Preserving Growth of Helical Filaments in the B4 Phase of Bent-Core Liquid Crystals [J].
Chen, Dong ;
Maclennan, Joseph E. ;
Shao, Renfan ;
Yoon, Dong Ki ;
Wang, Haitao ;
Korblova, Eva ;
Walba, David M. ;
Glaser, Matthew A. ;
Clark, Noel A. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2011, 133 (32) :12656-12663
[8]   Circular-polarization-induced enantiomeric excess in liquid crystals of an achiral, bent-shaped mesogen [J].
Choi, SW ;
Izumi, T ;
Hoshino, Y ;
Takanishi, Y ;
Ishikawa, K ;
Watanabe, J ;
Takezoe, H .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2006, 45 (09) :1382-1385
[9]  
Dantlgraber G, 2002, ANGEW CHEM INT EDIT, V41, P2408, DOI 10.1002/1521-3773(20020703)41:13<2408::AID-ANIE2408>3.0.CO
[10]  
2-M