Molecular Crystals and Liquid Crystals p. 55 - 61 (2007)
Update date:2022-08-11
Topics:
Mineno, Yoshihiro
Matsukawa, Takeshi
Ikeda, Satoshi
Taniuchi, Tetsuo
Nakanishi, Hachiro
Okada, Shuji
Adachi, Hiroaki
Yoshimura, Masashi
Mori, Yusuke
Sasaki, Takatomo
DAST (1-methyl-4-{2-[4-(dimethylamino)phenyl]ethenyl}pyridinium p-toluenesulfonate) is a promising crystalline material for electro-optic applications and THz-wave generation. DAST powder for crystal growth was prepared by two synthesis routes including the conventional one and we confirmed that purity of DAST powder became indistinguishable after proper recrystallization even using conventional synthesis process. The highest solubility of DAST was found for methanol-acetonitrile mixture, and DAST crystal growth in this mixture or methanol-ethanol mixture gave thicker crystals than those grown in methanol. Thus, morphological control of DAST single crystals was found to be possible by varying solvents.
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