Preparation of j-aggregated microcrystals of pseudoisocyanine

Hirokazu Kamatani, Hitoshi Kasai, Shuji Okada, Hiro Matsuda, Hidetoshi Oikawa, Nobutsugu Min Ami, Atsushi Kakuta, Katsumichi Ono, Akio Mukoh, Hachiro Nakanishi

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


J-aggregated microcrystals of 1,1'-diethyl-2,2'-cyanine bromide [pseudoisocyanine bromide (PIC)] was prepared by salting-out in saturated potasium bromide aqueous solution, reprecipitation in hexane and recrystallization in polymers at room temperature. J-band of microcrystals from aqueous conditions was sharp and blue-shifted compared with those from hydrophobic conditions. The size of the former microcrystals was smaller than that of the latter ones.

Original languageEnglish
Pages (from-to)233-241
Number of pages9
JournalMolecular Crystals and Liquid Crystals
Issue number1
Publication statusPublished - 1994 Aug


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