| 초록 |
A novel synthetic technique for N-fused coronene analogues has been developed through a conventional thermal cycloaddition reaction of perylene diimide with several 1,2,4-triazoline-3,5-diones. The cycloaddition readily occured in twice, yielding a bis-adduct dominantly under an optimized condition. The synthetic efficiency is confirmed by a polymer reaction in which a perylene unit of a polyimide backbone reacts to generate N-Fused coronene unit. 1H-nmr spectroscopy proved the polymer reaction by tracing perylene ring-protons before and after the cycloaddition. N-Fused coronene derivatives exhibit a wide absorption range from 600 to 850 nm and a low bandgap of 1.3 eV. |
