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Photophysical characterization of new fluorene derivatives I, II, III, and IV in hexane.
| Compound | λabsmax, nm | λemmax, nm | ΔλSt, nm | ϕ 1 | εmax.10−3, M−1.cm−1 |
|---|---|---|---|---|---|
| I | 403±1 | 452±1 | 49±2 | 0.86±0.05 | 53 |
| II | 405±1 | 446±1 | 41±2 | 0.98±0.05 | 31 |
| III | 398±1 | 444±1 | 46±2 | 0.92±0.05 | 50 |
| IV | 397±1 | 433±1 | 36±2 | 0.95±0.05 | 135 |
Fluorescence quantum yield measured relative to 9,10-diphenylanthracene in cyclohexane.
