4.4 Article

Theoretical study of the mixed π-conjugated bridge effect on the nonlinear optical properties of corannulene derivative

Journal

JOURNAL OF MOLECULAR MODELING
Volume 27, Issue 2, Pages -

Publisher

SPRINGER
DOI: 10.1007/s00894-021-04689-1

Keywords

Corannulene derivatives; A mixed pi-conjugated bridge; First hyperpolarizability

Funding

  1. start-up Foundation of Fujian University of Technology [GY-Z13109]
  2. Development Foundation of Fujian University of Technology [GY-Z160127]
  3. Education Department of Fujian Province [GY-Z17105, JAT170393]
  4. Science and Technology Major Special Project of Fujian Province [2014HZ0005-1]
  5. Industrial Technology joint Innovation Project of Fujian Province [2015-779]
  6. Fujian Province Science and Technology Innovation Leaders [GY-Z17142]

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A new series of corannulene derivatives with two mixed pi-conjugated bridge have been theoretically designed and investigated, showing that these molecules have large energy gaps. The study also reveals that employing two mixed pi-conjugated bridge can significantly increase the first hyperpolarizability of the compounds.
A new series of corannulene derivatives with two mixed pi -conjugated bridge have been theoretically designed and investigated by means of density functional theory. It is found that all molecules exhibit large energy gaps. The holes and electrons analysis show that charge transfer from long-chain connected with NH2 to long-chain connected with NO2. The small transition energy brings corannulene derivatives larger first hyperpolarizabilities. Furthermore, the polarization scan of the hyper-Rayleigh scattering (HRS) intensity indicates that all studied compounds belong to dipolar characteristic. The results indicate that employing two mixed pi -conjugated bridge can significantly increase the first hyperpolarizability.

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