Novel Pyromellitic Diimide-Based Macrocycle with a Linear π-Electronic System and Bis (phenylethynyl) pyromellitic Diimide: Syntheses, Structures, Photophysical …
We report the syntheses, structures, photophysical properties, and redox characteristics of the [2+ 2] pyromellitic diimide-based macrocycle with a linear π-electronic system 2 as well as the 3, 6-bis (phenylethynyl) pyromellitic diimide derivative 3. The interesting solid state structural properties of the clathrates of 3 with π-donors are also reported. The macrocycle 2 was synthesized by the direct cyclocondensation followed by the Sonogashira coupling ...