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

Document Type

Article

Publication Date

9-10-2015

Abstract

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.

Identifier

84941254129 (Scopus)

Publication Title

Journal of Physical Chemistry C

External Full Text Location

https://doi.org/10.1021/acs.jpcc.5b04840

e-ISSN

19327455

ISSN

19327447

First Page

21053

Last Page

21059

Issue

36

Volume

119

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