Triphenylamine-based allylidenemalononitrile chromophores: synthesis, and photophysical and second-order nonlinear optical properties

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Catal E., Keles E., SEFEROĞLU N., Achelle S., Barsella A., le Guen F. R., ...More

NEW JOURNAL OF CHEMISTRY, vol.42, no.18, pp.15052-15060, 2018 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 42 Issue: 18
  • Publication Date: 2018
  • Doi Number: 10.1039/c8nj02794c
  • Journal Name: NEW JOURNAL OF CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.15052-15060
  • Gazi University Affiliated: Yes

Abstract

A series of chromophores based on a mono-, di- or tri-substituted triphenylamine core and allylidenemalononitrile fragments has been designed. The linear and second order nonlinear optical properties as well as thermal stability of the chromophores have been studied experimentally. Structure-property relationships, in terms of the branching effect on the triphenylamine core and the influence of the aniline/coumarin part on the photophysical properties and NLO response, have been highlighted. The experimental results have been rationalized by theoretical calculations.