Journal Textile Coloration and Finishing Year / Vol., Issue, Month 2014 / V.26,no.4,Dec Title Synthesis and Property of Pyrene-Naphthalene Diimide-Pyrene Triad Authors Hyunji Kim, A-Rong Kim and Jong S. Park Institution/Affiliations Dong-A University Pages/Total page pp.305 ~ 310 / 6 Language Korean Abstract Abstract: In this study, we presented a newly synthesized pyrene-naphthalene diimide(NDI)-pyrene triad. The optical and structural properties were examined using various characterization techniques. A donor-acceptor-donor triad molecule exhibited a strong charge transfer, though there existed neither intramolecular nor intermolecular hydrogen bonding sites, due to the formation of preferential complementary complex between pyrene and NDI. Powder XRD measurement revealed a sharp and distinctive X-ray patterns, indicating the presence of microcrystalline-like structure. POM images showed anisotropic fingerprint texture similar to that of cholesteric phase, and SEM images showed numerous columnar structures with length of 1 to 10μm. Above observation clearly demonstrated that π-complementary NDI-pyrene interactions in the traid was strong enough to form columnar aggregates in the long range. Keywords Keywords: pyrene-NDI-pyrene triad, UV-visible absorbance, fluorescence, scanning electron microscope(SEM) image, powder XRD, polarized optical microscope(POM) image Download   Reference http://www.koreascience.or.kr/article/ArticleFullRecord.jsp?cn=OSGGBT_2014_v26n4_305