Chem. J. Chinese Universities ›› 2017, Vol. 38 ›› Issue (10): 1796.doi: 10.7503/cjcu20170267

• Physical Chemistry • Previous Articles     Next Articles

Theoretical Study on the Second-order Nonlinear Optical Properties of Diaryl Ammonia(Boron)-π-carborane Ternary Compounds

LI Rongrong, WANG Hongqiang, WANG Li, WU Juan, QIU Yongqing*()   

  1. Institute of Functional Material Chemistry, Faculty of Chemistry,Northeast Normal University, Changchun 130024, China
  • Received:2017-04-26 Online:2017-10-10 Published:2017-09-22
  • Contact: QIU Yongqing E-mail:qiuyq466@nenu.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(No.21173035) and the 12th Five-Year Science and Technology Research Project of the Education Department of Jilin Province, China(No.[2016]494)

Abstract:

The structures and second order nonlinear optical(NLO) properties of diaryl ammonia(boron)-π-twelve vertex carborane ternary compounds were studied using density functional theory(DFT) methods. The results show that the conjugated bridge length and diaryl ammonia(boron) of compounds have relatively small influence on their dipole moments. Along with the lengthening of the conjugate bridge and the increases of electronic space scope <R2>, polarizability and the first hyperpolarizability increase. From the analysises of electronic spectra and the corresponding molecular orbitals of compounds, it is found that the intramolecular charge transfers within these compounds occur mainly between diaryl ammonia(boron) and the π-bridge, while carborane has less contribution. In addition, the differences of the electron donating ability between diaryl ammonia and diaryl boron can adjust second-order NLO responses of these compounds.

Key words: Twelve vertex bis-substituted o-carborane, Diaryl ammonia(boron) compound, Density functional theory, Second-order nonlinear optical(NLO) property

CLC Number: 

TrendMD: