Chem. J. Chinese Universities ›› 2021, Vol. 42 ›› Issue (7): 2123.doi: 10.7503/cjcu20210129

• Review • Previous Articles     Next Articles

The PBFC-PI Quantum Dynamical Method and Its Applications

BIAN Wensheng1,2(), CAO Jianwei1   

  1. 1.Beijing National Laboratory for Molecular Sciences,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190,China
    2.School of Chemical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China
  • Received:2021-03-01 Online:2021-07-10 Published:2021-04-30
  • Contact: BIAN Wensheng E-mail:bian@iccas.ac.cn
  • Supported by:
    the National Natural Science Foundation of China(21773251);the Beijing National Laboratory for Molecular Sciences, China

Abstract:

Quantum dynamics(QD) calculations of polyatomic systems are very important, however, accurate QD calculations for molecular system with more than six atoms remain a challenge nowadays. The process-oriented basis function customization(PBFC)-parallelized iterative(PI) method is an e?cient QD method developed by Bian’s group, which has been applied in accurate QD calculations of H transfer rate in malonaldehyde, a nine-atom isomerization system. In this review, we ?rst present an explanation on the basic idea of PBFC, which may have general importance, and then focus on the details of the PBFC-PI method, its combination with other methods and the recent progresses in its applications. Using these methods, large-scale parallel calculations have been performed for three kinds of benchmark systems, featuring single H transfer, concerted double H transfer, and sequential double H transfer, respectively. These calculations are helpful for acquiring new insights into H transfer processes.

Key words: Quantum dynamics, Iterative method, Tunneling splitting, Malonaldehyde, Double hydrogen transfer

CLC Number: 

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