Helical discotic switch

The present invention provides liquid crystal having a spiral coil structure and a dipole moment along its axis and a helical discotic switch using the same, wherein the helicene compound has the structure:wherein X is O, or S and Y is -O-C(=O)CH2-O-R5, wherein R5 is H, substituted or unsubstituted...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KATZ THOMAS J, NUCKOLLS COLIN P
Format:	Patent
Sprache:	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 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 present invention provides liquid crystal having a spiral coil structure and a dipole moment along its axis and a helical discotic switch using the same, wherein the helicene compound has the structure:wherein X is O, or S and Y is -O-C(=O)CH2-O-R5, wherein R5 is H, substituted or unsubstituted alkyl, alkenyl, cycloalkyl, aryl, or arylalkyl, wherein R1, R2, R3 and R4 are independently the same or different and are substituted or unsubstituted alkyl, alkenyl, cycloalkyl, aryl, or arylalkyl.