The flat faces of aromatic rings also have partial negative charges due to the π-electrons. Similar to other non-covalent interactions –including hydrogen bonds, electrostatic interactions and Van der Waals interactions, Related Products of 1075705-01-9.
New kinds of heterocyclic mesogenic compounds containing benzoxazole, ethynyl, and laterally fluorinated phenyl groups, namely 2-[4-[2-[4-alkoxyphenyl]ethynyl]-2,3-difluorophenyl]benzoxazole derivatives (nPEDFPBx), are synthesized and evaluated. The compounds nPEDFPBx except nitro-substituted ones have enantiotropic nematic mesophases with mesophase ranges of 16-86 degrees C and 29-108 degrees C on heating and cooling, respectively. The results show that introduction of two lateral fluorine atoms into molecule results in enhanced nematic mesophase stability. Meanwhile, nPEDFPBx displays much higher birefringence (0.507-0.624) than common tolanebased liquid crystals, which is ascribed to its large pi-conjugated molecule composed of benzene, ethynyl, and benzoxazole mesogenic unit. The nPEDFPBx has a high potential to serve as a dopant for liquid crystal mixture. [GRAPHICS] .
Related Products of 1075705-01-9, You can get involved in discussing the latest developments in this exciting area about C7H7FN2O3.
Reference:
Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem