83811-40-9Relevant academic research and scientific papers
The synthesis, mesomorphism and mesophase structure of anisotropic imines and their complexes with rhenium(I)
Liu, Xiao-Hua,Henirich, Benoit,Manners, Ian,Guillon, Daniel,Bruce, Duncan W.
, p. 637 - 644 (2000)
Highly anisotropic imine ligands have been synthesised and complexed to Re(I). Two series of ligands and complexes were obtained with various chain lengths, showing smectic and nematic phases for the ligands and only a nematic phase for the complexes. The
PHOTOCROSSLINKABLE MATERIALS COMPRISING ALICYCLIC GROUP
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Page/Page column 81, (2009/01/20)
A diamine compound of formula (I) is proposed as well as polymers, copolymers, polyamic acids, polyamic acid esters, or polyimides based on such compound.
Liquid-Crystalline Heterocycloalkanes. III. Synthesis and Liquid-Crystalline Properties of Substituted 1,3-Dioxadecalines
Tschierske, C.,Zaschke, H.
, p. 1 - 14 (2007/10/02)
Liquid-crystalline 2-substituted and 2,6-disubstituted 1,3-dioxadecalines (4-6) were synthesized by acid-catalyzed acetalization of trans-2-hydroxymethylcyclohexanol (1) or trans-4-alkyl-trans-2-hydroxymethylcyclohexanoles (2) with aldehydes 3 whereby the desired trans-isomers were formed only.The syntheses of the various aldehydes are also described.Special attention is drawn on the evolution of mesogenic properties of the title compounds 4-6 in comparison with known decalines and 1,3-dioxanes.It was found that the clearing temperatures of the synthesized 1,3-dioxadecalines are always lower than those of the corresponding decaline derivatives, due to the deformation of the decaline-ringsystem by the introduction of two oxygen-atoms.The comparison of 1,3-dioxanes and 1,3-dioxadecalines shows that the dioxadecaline ringsystem tends to suppress smectic mesophases in favour of nematics.A first example of a liquid crystalline cis-fused 1,3-dioxadecaline (8) is described, too.
