112418-54-9Relevant articles and documents
Effect of fluorocarbon chains on the mesomorphic properties of chiral imines and their complexes with copper(II)
Ocak, Hale,Bilgin-Eran, Belkiz,Tschierske, Carsten,Baumeister, Ute,Pelzl, Gerhard
scheme or table, p. 6995 - 7001 (2010/05/18)
The synthesis and mesomorphism of new chiral imine compounds incorporating a fluorocarbon chain which have calamitic molecular shape and their complexes with copper(II) are reported. The liquid crystalline properties were investigated using polarised optical microscopy, differential scanning calorimetry and X-ray diffraction. Imine compounds with a semifluorinated chain and a short chiral chain show chiral smectic mesophases with dramatically enhanced mesophase stabilities compared to the related hydrocarbon derivatives. In addition, the first examples of mesogenic chiral salicylaldiminate copper(II) complexes carrying semifluorinated alkyl chains at their peripheries have been synthesized and their liquid crystalline properties were investigated.
Disc-like chiral palladium and platinum complexes: Synthesis and mesomorphic properties
Eran, Belkiz Bilgin,Singer, Dirk,Praefcke, Klaus
, p. 111 - 116 (2007/10/03)
ortho-Palladated and -platinated benzalimines are a widely studied novel type of liquid-crystals. These sheet-shaped materials contain two or even four metal atoms and carry eight and twelve flexible side-chains, respectively. Here we present the preparation and mesomorphic properties of dinuclear chiral homologues of such sheet-like compounds. On their own, the chiral members of the dinuclear cyclopalladated series exhibit no liquid-crystalline properties, but show mesophase inductions (Colh-phase) in mixtures with an electron-acceptor, e.g.,2,4,7-trinitroflourenone (TNF). A diplatinated chiral analogue, however, monotropically exhibits the cholesteric nematic discotic (ND/*) type of mesophase. Mixtures of this platinum nematogen with TNF also show the induction of a columnar mesophase (Colh) due to charge-transfer interactions.
The Preparation and Thermal Properties of Terminal Disubstituted N-(4-Benzoyloxybenzylidene)anilines
Takenaka, Shunsuke,Ikemoto, Tetsuya,Kusabayashi, Shigekazu
, p. 3965 - 3966 (2007/10/02)
The homologous series of N--4-(2-methylbutoxy)aniline (1), and N-benzylidene>-4-n-alkoxyaniline (2), and N--4-(2-methylbutoxy)aniline (3) where the 2-methylbutoxyl group has an S-configuration, have been prepared.Series 1 and 2 form a chiral smectic C (S*C) phase in addition to a cholesteric (Ch) and a chiral smectic G (S*G) phases, and series 3 form (S*C) and Ch phases.