Chem. J. Chinese Universities ›› 2019, Vol. 40 ›› Issue (5): 965.doi: 10.7503/cjcu20180851

• Physical Chemistry • Previous Articles     Next Articles

Theoretical Study on the Second-order Nonlinear Optical Properties of a Porphyrin-o-Carborane-Boron-dipyrromethene Triad Compound

KANG Huimin, WANG Hongqiang, WANG Huiying, WU Lixin, QIU Yongqing*()   

  1. Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
  • Received:2018-12-20 Online:2019-04-17 Published:2019-04-17
  • Contact: QIU Yongqing E-mail:qiuyq466@nenu.edu.cn
  • Supported by:
    † Supported by the “12th Five-Year” Science and Technology Research Project of the Education Department of Jilin Province, China(No.[2016]494)

Abstract:

The calculations of geometric structures, electronic absorption spectra, second-order nonlinear optical(NLO) properties of porphyrin-o-carborane-boron-dipyrromethene(BODIPY) triad were carried out by density functional theory(DFT). The results show that the static first hyperpolarizability(βtot) of the V-shaped compound is larger than that of the linear-shaped compound, and the βtot values can be enhanced by extending π-conjugate bridge. The analysis of electron density difference maps can be seen that the charge transfer pattern of the oxidized/reduced species have changed, which lead to the second-order NLO properties have significantly varied. The investigation of the frequency-dependent first hyperpolarizability shown that less dispersion effect at restrictive frequency region for all of the compounds. Therefore, second-order NLO properties can be effectively modulated by extending π-conjugate bridge and oxidized/reduced reactions.

Key words: Boron-dipyrromethene(BODIPY) triad compound, Redox, Nonlinear optical property, Density functional theory

CLC Number: 

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