| 초록 |
A butterfly-shaped diphenylpyrimidine molecule (DPP6DB) was newly synthesized for understanding the relationships between molecular packing structures and photophysical properties. Diphenylpyrimidine (DPP) was selected to demonstrate the photophysical property changes depending on the molecular packing structures while the tridodecylbenzoate groups (6DB) was induced the nanophase separation between rigid DPP core and flexible 6DB tails. By the combination of scattering, spectroscopic, and microscopic experiments, we have demonstrated that the peculiar monotropic phase transition behaviors of a butterfly-shaped diphenylpyrimidine molecule (DPP6DB) were originated from the nonplanarity of the mesogenic core. And the photophysical properties of DPP6A was tuned by controlling the molecular packing structures with simple thermal treatments. This work was supported by, the MOTIE/KDRC 10051334, BRL 2015042417, and Mid-Career Researcher Program (2016R1A2B2011041) and the BK21 Plus program. |
