Photophysical and Computational Analysis of a Symmetrical Fluorene-Based Janus Dione Derivative

Grace W. Githaiga, Adam W. Woodward, Alma R. Morales, Mykhailo V. Bondar, Kevin D. Belfield

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


Molecular symmetry plays an important role in the physical characteristics and spectra of a molecule. However, experimental results can sometimes be counterintuitive due to unpredictable properties of a molecule. Photophysical characterization of a centrosymmetrical indacene-1,3,5,7(2H,6H)-tetraone, or Janus dione, derivative revealed a two-photon absorption maximum closely associated with the main linear absorption band (a typically two-photon forbidden transition for molecules of high symmetry). Though observed previously in similar compounds, little explanation has been offered for this anomaly. Our investigation of a symmetrical Janus dione, including linear and nonlinear photophysical characterization along with TD-DFT calculations, provides insight regarding the origin of this phenomenon.

Original languageEnglish (US)
Pages (from-to)21053-21059
Number of pages7
JournalJournal of Physical Chemistry C
Issue number36
StatePublished - Sep 10 2015

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • General Energy
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films


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