(Figure Presented) Are you N-fused? Doubly N-fused porphyrin (see picture; Br red, F green, N blue) exhibits exceptionally long-wavelength absorption for an 18π aromatic system (in excess of 1600 nm). The HOMO-LUMO energy gap of doubly N-fused porphyrin is extremely small for an annulenic compound and results from endocyclic extension of the porphyrin π system.
!!!All Science Journal Classification (ASJC) codes
- 化学 (全般)