433719-71-2

Upstream product

• 433719-69-8 1,2-bis(4-hydroxyphenyl)tetrafluoroethane 
• 433719-70-1 C₁₄H₂₂F₄O₂ 

Relevant academic research and scientific papers

Liquid-crystalline compounds

The invention relates to liquid-crystalline compounds of the formula I, and to liquid-crystalline media comprising at least one compound of the formula I and to electro-optical displays containing such a liquid-crystalline medium.

CHIRAL COMPOUNDS II

The invention relates to chiral compounds of formula (I) R-X-(A-Z)m-G-(Z-A)n-X-R, wherein R, R, X, X, A, A, Z, Z, G, m and n have the meaning given in claim 1, to liquid crystalline mixtures comprising at least one chiral compound of formula (I), to chiral linear or crosslinked liquid crystalline polymers obtainable by polymerizing a polymerizable mixture comprising at least one chiral compound of formual (I), to the use of chiral compounds of formula (I) and mixtures and polymers obtained thereof in liquid crystal displays, active and passive optical elements, adhesives, synthetic resins with anisotropic mechanical properties, cosmetic and pharmaceutical compositions, diagnostics, liquid crystal pigments, for decorative and security applications, nonlinear optics, optical information storage or as chiral dopants, and to a liquid crystal display comprising a mixture comprising at least one chiral compound of formula (I).

Liquid crystals with multiple fluorinated bridges in the mesogenic core structure

A rational, building block oriented design approach gives rise to a new class of "super fluorinated" liquid crystals suitable for the newest generation of active matrix LCDs. These materials contain combinations of different fluorinated linking groups in their mesogenic core structure, resulting in a highly advantageous property profile including a broad nematic phase range, low rotational viscosity and high dielectric anisotropy. The large-scale synthesis of such complex materials became feasible only by some recent advances in the synthesis of α,α-difluoroether linkages.