New two-photon absorbing fluorene derivatives: Synthesis and nonlinear optical characterization

Kevin D. Belfield, David J. Hagan, Eric W. Van Stryland, Katherine J. Schafer, Raluca A. Negres

Research output: Contribution to journalArticlepeer-review

232 Scopus citations

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 languageEnglish (US)
Pages (from-to)1575-1578
Number of pages4
JournalOrganic Letters
Volume1
Issue number10
DOIs
StatePublished - Nov 18 1999
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry

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