Table 1. Examples of Known Highly Emissive Nanographenesab.
| Entry | Footprint | Nanographene | Φf | bsλmax | emλmax | Stokes Shift |
|---|---|---|---|---|---|---|
| 1 | C38 | Ovalenes33−36 | 67–89% | 580–660 nm | 600–670 nm | <10 nm |
| 2 | C50 | Thia-helicenes37 | 48% | 400 nm | 666 nm | 266 nm |
| 3 | C68 | Pyrene-helicenes I38 | 93% | 538 nm | 562 nm | 24 nm |
| 4 | C76 | Pyrene-helicenes II39 | 68% | 592 nm | 612 nm | 20 nm |
| 5 | C80 | Warped nanographenes24 | 37% | 433 nm | 528 nm | 95 nm |
| 6 | C102 | Aza-helicenes I40 | 32% | 580 nm | 588 nm | 8 nm |
| 7 | C124 | Aza-helicenes II41 | 28% | 633 nm | 770 nm | 137 nm |
| 8 | C138 | Extended helicenes I42 | 18% | 510 nm | 810 nm | 300 nm |
| 9 | C144 | Thia-helicenes II43 | 14% | 630 nm | 778 nm | 148 nm |
| 10 | C186 | Extended helicenes II44 | 34% | 573 nm | 733 nm | 160 nm |
| 11 | C48 | Corannulene–coronenes (this work) | 1–82% | 350–430 nm | 510–695 nm | 139–345 nm |
a
The carbon number (number of annulated sp2-carbon atoms) is shown as footprint.
b
This number represents the fundamental carbon scaffold without consideration for edge substituents.