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DFT Study on the Reactive Species of Metalloporphyrin Catalytic Oxidation

  • Meijuan Cao
  • Aijing Gao
  • Zhicheng SunEmail author
  • Luhai Li
  • Lixin Mo
  • Ruping Liu
  • Nan Deng
  • Rui Fang
  • Yumeng Han
Conference paper
  • 90 Downloads
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 600)

Abstract

Metalloporphyrin species such as metal porphyrin (PMII, PMIIICl), metal(III)-peroxo(PMII-O2), metal(III)-hydroperoxo(PMII-OH), and metal(IV)-oxo(PMIV = O) are key intermediates in the catalytic activation of dioxygen by metalloenzymes. It has been difficult to elucidate changes in the structure of the metal centre during catalysis and factors that control their chemical reactivity with substrates. The intermediates of metaloporphyrins catalytic circle were investigated to give insights into the detailed geometric and electronic structure, thus enhancing the understanding of redox metaloenzymes and their highly selective roles in biological process. The intermediates of metalloporphyrins (M = Fe, Mn and Co) including PMII, PMIIICl, PMII-O2, PMIV = O and PMIIIOH have been investigated using density functional theory method. The ground state of the intermediates was determined on assessment of relative energy and the results were are in line with expectations. Geometric structures of the ground state further confirmed the energetic assessment. The Mulliken charge and frontier molecular orbitals revealed the behavior of the intermediates in the catalytic process.

Keywords

Density functional theory Porphyrin intermediates Ground state Mulliken charge Frontier molecular orbital (FMO) 

Notes

Acknowledgements

This work was supported by the General and Youth Projects of National Natural Science of China (Grant No. 21706016), the Beijing Municipal Education Commission (Grant No. 04190118002/092, 04190118002/042), Project by Beijing Postdoctoral Research Foundation (ZZ-20160X), BIGC Key Project (Ea201603), the BIGC Talent Project and Undergraduate Student Research Education Foundation.

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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Meijuan Cao
    • 1
  • Aijing Gao
    • 1
  • Zhicheng Sun
    • 1
    Email author
  • Luhai Li
    • 1
  • Lixin Mo
    • 1
  • Ruping Liu
    • 1
  • Nan Deng
    • 1
  • Rui Fang
    • 1
  • Yumeng Han
    • 1
  1. 1.Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic CommunicationBeijingChina

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