Nematic ionic liquid crystals based on pyridinium salts derived from 4-hydroxypyridine

被引：25

作者：

Pana, Amalia ^{[1
]}

Pasuk, Iuliana ^{[2
]}

Micutz, Marin ^{[3
]}

Circu, Viorel ^{[1
]}

机构：

[1] Univ Bucharest, Dept Inorgan Chem, 23 Dumbrava Rosie St,Sect 2, Bucharest 020464, Romania

[2] Natl Inst Mat Phys, POB MG-7, Magurele 077125, Romania

[3] Univ Bucharest, Dept Phys Chem, 4-12 Regina Elisabeta Blvd, Bucharest 030018, Romania

来源：

CRYSTENGCOMM | 2016年 / 18卷 / 27期

关键词：

RAY PHOTOELECTRON-SPECTROSCOPY; IMIDAZOLIUM; COMPLEXES; DERIVATIVES; TRANSITION; MESOPHASES; BEHAVIOR; PHASES; ANION;

D O I：

10.1039/c6ce00618c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A series of pyridinium salts with various counterions (Br-, NO3-, BF4-, PF6-, OTf- and SCN-) and different spacer chain lengths, which display a nematic phase, have been designed and prepared. They are derived from 4-hydroxypyridine and possess two mesogenic cyanobiphenyl groups attached to the pyridinium unit via a flexible long alkyl spacer (6, 9, 10). These salts exhibit solely a nematic phase with the thermal range influenced by the counterion employed and spacer length.

引用

页码：5066 / 5069

页数：4

共 38 条

[1] Liquid crystallinity-embodied imidazolium-based ionic liquids and their chiral mesophases induced by axially chiral tetra-substituted binaphthyl derivatives [J].

Ahn, Sangbum ;

Yamakawa, Shohei ;

Akagi, Kazuo .

JOURNAL OF MATERIALS CHEMISTRY C, 2015, 3 (16) :3960-3970

[2] Evidence of nematic, hexagonal and rectangular columnar phases in thermotropic ionic liquid crystals [J].

Artzner, F ;

Veber, M ;

Clerc, M ;

Levelut, AM .

LIQUID CRYSTALS, 1997, 23 (01) :27-33

[3] Thermotropic Ionic Liquid Crystals [J].

Axenov, Kirill V. ;

Laschat, Sabine .

MATERIALS, 2011, 4 (01) :206-259

[4]

Bandoux J., 2005, TETRAHEDRON LETT, V46, P1137

[5] Ionic liquid crystals [J].

Binnemans, K .

CHEMICAL REVIEWS, 2005, 105 (11) :4148-4204

[6] Macrocyclic liquid crystals [J].

Blake, AJ ;

Bruce, DW ;

Fallis, IA ;

Parsons, S ;

Richtzenhain, H ;

Ross, SA ;

Schroder, M .

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1996, 354 (1706) :395-414

[7] Self-Assembly of Imidazolium-Based Rodlike Ionic Liquid Crystals: Transition from Lamellar to Micellar Organization [J].

Cheng, Xiaohong ;

Bai, Xueqing ;

Jing, Shan ;

Ebert, Helgard ;

Prehm, Marko ;

Tschierske, Carsten .

CHEMISTRY-A EUROPEAN JOURNAL, 2010, 16 (15) :4588-4601

[8] Towards a Molecular Understanding of Cation-Anion Interactions-Probing the Electronic Structure of Imidazolium Ionic Liquids by NMR Spectroscopy, X-ray Photoelectron Spectroscopy and Theoretical Calculations [J].

Cremer, Till ;

Kolbeck, Claudia ;

Lovelock, Kevin R. J. ;

Paape, Natalia ;

Woelfel, Rene ;

Schulz, Peter S. ;

Wasserscheid, Peter ;

Weber, Henry ;

Thar, Jens ;

Kirchner, Barbara ;

Maier, Florian ;

Steinrueck, Hans-Peter .

CHEMISTRY-A EUROPEAN JOURNAL, 2010, 16 (30) :9018-9033

[9] Effects of polymerization on chromophore stacking in bilayer membranes [J].

Everaars, MD ;

Marcelis, ATM ;

Sudholter, EJR .

LANGMUIR, 1996, 12 (16) :3964-3968

[10] CYCLOPALLADATION OF 5-(1-HEXYL)-2([4'-(1-UNDECYLOXY)PHENYL])PYRIMIDINE - SYNTHESIS AND CHARACTERIZATION OF MONONUCLEAR COMPLEXES [J].

GHEDINI, M ;

PUCCI, D .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1990, 395 (01) :105-112

← 1 2 3 4 →