Liquid crytals (LCs) are probably the most exciting state of matter. They attract scientists across disciplines such as chemistry, physics, materials science, and engineering—theorists and experimentalists alike. These days, you can buy quite affordable LCD TV sets around the corner, but that's just one of the many things liquid crystals can do. The selection of recent research articles presented below illustrates the broad interest in this area of soft condensed matter.
J. W. Goodby, P. J. Collings, T. Kato, C. Tschierske, H. Gleeson,
Handbook of Liquid Crystals
2nd edition, Wiley-VCH, Weinheim, 2014.
Find all articles on liquid crystals in Wiley Online Library...
See the International Liquid Crystal Society's website.
A nanoporous material was developed by the self-assembly and cross-linking of a hydrogen-bonded columnar liquid crystalline complex. Subsequent quantitative removal of the template affords the nanoporous material that size-selectively binds sodium and potassium ions over other ions. This is analyzed for the first time by utilizing the quartz crystal microbalance.
Gerardus M. Bögels, Jody A. M. Lugger, Olga J. G. M. Goor, Rint P. Sijbesma
Adv. Funct. Mater., September 28, 2016, DOI: 10.1002/adfm.201603408. Read article
Eight new pairs of enantiomeric dimers, synthesized by joining cyanobiphenyl and salicylaldimine cores via a flexible spacer of varying length and parity, including binary mixtures derived from such dimeric motifs, are evidenced to show helical, frustrated, optically biaxial and re-entrant liquid crystal phases by orthoscopic, conoscopic, differential scanning calorimetric and X-ray powder diffraction techniques.
Vediappen Padmini, Palakurthy Nani Babu, Geetha G. Nair, D. S. Shankar Rao, Channabasaveshwar V. Yelamaggad
Chem. Asian J., September 06, 2016, DOI: 10.1002/asia.201600918. Read article
Periodic minimal interface: Attachment of iodine atoms onto the headgroup of an amphiphilic zwitterion leads to the formation of a bicontinuous cubic liquid-crystalline assembly with a primitive-type infinite periodic minimal surface. Halogen bonding between the iodine atoms and the anions plays an important role in controlling the interface curvature of the assembly.
Takahiro Ichikawa, Akiyoshi Okafuji, Takashi Kato, Hiroyuki Ohno
ChemistryOpen, August 02, 2016, DOI: 10.1002/open.201600054. Read article
Bart Kahr, Alexander G. Shtukenberg
Isr. J. Chem., July 06, 2016, DOI: 10.1002/ijch.201600002. Read article
Zwitterionic derivatives of the [closo-1-CB11H12]– anion form liquid-crystalline phases and improve the dielectric properties of nematic liquid-crystal materials.
Jacek Pecyna, Remigiusz Żurawiński, Piotr Kaszyński, Damian Pociecha, Piotr Zagórski, Serhii Pakhomov
Eur. J. Inorg. Chem., April 27, 2016, DOI: 10.1002/ejic.201600240. Read article.
Versatile Suzuki cross-coupling reactions between arylboronic acids and triphenylenyl triflates generate a rich diversity of attractive functional discogens.
Ke-Qing Zhao, Yue Gao, Wen-Hao Yu, Ping Hu, Bi-Qin Wang, Benoît Heinrich, Bertrand Donnio
Eur. J. Org. Chem., April 13, 2016, DOI: 10.1002/ejoc.201600270. Read article.
A simple modular design was used to impart liquid-crystalline properties to iridium complexes without modification of their photophysical properties. Annealed films of the liquid-crystalline complexes display hole mobilities up to three orders of magnitude higher than parent iridium complex without mesogenic groups and are the highest values reported to date for iridium complexes (see figure).
Yafei Wang, Christopher P. Cabry, ManJun Xiao, Louise Male, Stephen J. Cowling, Duncan W. Bruce, Junwei Shi, Weiguo Zhu, Etienne Baranoff
Chem. Eur. J., December 22, 2015, DOI: 10.1002/chem.201504669. Read article.
Changing states: The cohesive free energy density concept (CFED) is applied to thermotropic cyanobiphenyl-based liquid crystals to establish predictive quantitative correlations between each antagonist segments of the amphiphilic molecules (flexible alkyl tail/rigid aromatic core) and their transition temperatures (solid→liquid crystalline/liquid crystalline→ isotropic liquid; see figure).
Thibault Dutronc, Emmanuel Terazzi, Laure Guénée, Kerry-Lee Buchwalder, Sébastien Floquet, Claude Piguet
Chem. Eur. J., December 14, 2015, DOI: 10.1002/chem.201503420. Read article.