| 摘要 |
PURPOSE: A crystal engineering method is provided to obtain pure polyene compound with high purity and enhanced optical properties. CONSTITUTION: A crystal engineering method which grows polyene compound while refining the same includes electron donors and electron acceptors represented by chemical formula 1 under the presence of an ionic additive in a solvent. Here, n is an integer of 1-4, R1 and R2 are respectively selected from H, D, -OH, an ester group, C1-4 alkyl group, -NH2, -NHR4, -NR5R6, a functional group of the chemical formula 1-a, perhalogenated, halogenated, or a non-halogenated aliphatic group, or an aromatic group, and R3 is -OH or C1-4 alkyl group, ester group, C1-4 alkoxy group, -NH2, -NHR7, -NR8R9 or a functional group of the chemical formula 1-b.
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