Deuterium-substituted difluoro-oxymethane derivative

The invention discloses a deuterium-substituted difluoro-oxymethane derivative of which the structural general formula is shown in the formula I. The liquid crystal compound shown in the formula I has the essential general physical properties as a compound and is stable to light and heat; with relat...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WANG JIN, HOU ZEFENG, ZHANG XING, YUAN GUOLIANG, DUAN YAJIE, LYU WENHAI, HUA RUIMAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS ADHESIVES CHEMISTRY DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DYES FREQUENCY-CHANGING HETEROCYCLIC COMPOUNDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS ORGANIC CHEMISTRY PAINTS PHYSICS POLISHES TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	The invention discloses a deuterium-substituted difluoro-oxymethane derivative of which the structural general formula is shown in the formula I. The liquid crystal compound shown in the formula I has the essential general physical properties as a compound and is stable to light and heat; with relatively wide nematic phase, the liquid crystal compound has good compatibility with other compounds as well as low rotary viscosity gamma1 and high dielectric anisotropy ((delta)epsilon>0); and particularly, when the compound is used together with a similar non-deuterium substituted liquid crystal, the characteristic of low-temperature intersolubility is improved. The deuterium-substituted difluoro-oxymethane derivative disclosed by the invention is of great significance to the development of a monomer liquid crystal compound with low rotary viscosity gamma1 and high dielectric anisotropy (delta)epsilon. The liquid crystal composition containing the compound shown in the formula I has wide temperature range of liquid