Abstract
(matrix presented). Efficient Pd-catalyzed Heck coupling methodology was employed to provide two new fluorene derivatives with phosphonate (2) and nitro (3) electron-withdrawing functionalities. Both derivatives exhibit two-photon absorption (2PA), as determined by nonlinear absorption measurements using a femtosecond pump/white light continuum probe "NLO spectrometer". Both fluorene derivatives have high 2PA cross sections (650 and 1300 × 10-50 cm4 s photon-1 molecule-1 for compounds 2 and 3, respectively).
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1575-1578 |
| Number of pages | 4 |
| Journal | Organic Letters |
| Volume | 1 |
| Issue number | 10 |
| DOIs | |
| State | Published - Nov 18 1999 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Biochemistry
- Physical and Theoretical Chemistry
- Organic Chemistry
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