121st General Meeting of the KCS

Type Poster Presentation
Area Physical Chemistry
Room No. Event Hall
Time 4월 20일 (금요일) 11:00~12:30
Code PHYS.P-136
Subject Kinetically Controlled Polymorphic Superstructures: Pyrene-Based Asymmetric Supramolecule
Authors MINWOOK PARK, Kwang-Un Jeong*
Department of Polymer-Nano Science and Tech, Chonbuk National University, Korea
Abstract A pyrene-based asymmetric supramolecule (abbreviated as P3M) was newly and successfully synthesized for understanding the relationship between the kinetically controlled polymorphic superstructures and their physical properties. P3M showed the monotropic phase transition behavior (a stable crystalline phase (K1) and a metastable crystalline phase (K2)). P3M exhibited two synclinically tilted crystalline superstructures: the 6.75 nm and 4.30 nm periodicities of layered structures for K1 and K2, respectively. The stable K1 and metastable K2 phases were dominantly induced by the hydrogen-bonds and π-π interactions. UV-Vis and PL experiments showed that the photophysical properties of P3M directly depend on their molecular packing superstructures. This work was mainly supported by Mid-Career Researcher Program (2016R1A2B2011041), BK21 Plus program, Korea, and BRL (2015042417) of Korea.
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