| http://www.w3.org/ns/prov#value | - Composition represented by: ##STR71## wherein R1, R2 and R3 are independently a linear or branched alkyl group having the formula Cn H2n+1 or a substituent group selected from the substituent groups mentioned in Examplification 1, in the case of a discotic liquid crystallline compound, at least one of R1, R2 and R3 is an optically active substituent mentioned in Examplification 1, n is an integer
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