0000000000964581

AUTHOR

Qingbing Wang

showing 2 related works from this author

Shape-persistent V-shaped mesogens—formation of nematic phases with biaxial order

2006

A homologous series of shape-persistent V-shaped molecules has been designed to form the biaxial nematic phase. Phenyleneethynylene moieties are attached to a bent fluorenone unit to create an apex angle of about 90°, which is determined from the single crystal structure. Two mesogens, one symmetric and another unsymmetric, have been synthesized by attaching a cyano group to one or both of the peripheral phenyl units, respectively. These groups introduce local dipoles essential for the formation of the nematic phases. The tendency to form a crystalline phase is reduced by laterally substituted hexyloxy chains which allow the nematic phase to be supercooled to a glassy state. Two of the thre…

Materials scienceBiaxial nematicGeneral ChemistryCrystal structureConoscopyHomologous serieschemistry.chemical_compoundCrystallographychemistryFluorenoneLiquid crystalMaterials ChemistrySupercoolingSingle crystalJ. Mater. Chem.
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CCDC 294987: Experimental Crystal Structure Determination

2007

Related Article: M.Lehmann, Shin-Woong Kang, C.Kohn, S.Haseloh, U.Kolb, D.Schollmeyer, QingBing Wang, S.Kumar|2006|J.Mater.Chem.|16|4326|doi:10.1039/b605718g

Space GroupCrystallography36-bis(2-(25-dihexyloxy-4-(2-phenylethynyl)phenyl)ethynyl)-9H-fluoren-9-oneCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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