Interpreting X-ray Diffraction Patterns of Metal-Organic Frameworks via Generative Artificial Intelligence.

Journal: Journal of the American Chemical Society
Published Date:

Abstract

Metal-organic frameworks (MOFs) have attracted considerable attention owing to their multifaceted applications and structurally tunable characteristics. Powder X-ray diffraction (XRD) is an essential technique for high-throughput characterization of MOFs. However, it remains challenging to automatically interpret the XRD data due to the diversity and complexity of the geometric structures of MOFs. Herein, we propose a generative artificial intelligence framework based on the Stable-Diffusion architecture for deciphering the structures of MOFs from powder XRD patterns. This model, named as Xrd2Mof, has incorporated domain-specific knowledge by using a coarse-grained representation scheme, which leads to an accuracy of over 93% in identifying the ground truth MOF structure corresponding to the targeted XRD pattern. Xrd2Mof can be directly applied to a diverse range of MOF structures that cover nearly all types of framework topologies, thereby establishing a novel technological avenue for automated structural analysis of MOFs in self-driving laboratories.

Authors

  • Bin Feng
    Department of Orthopedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China.
  • Bingxu Wang
    School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen 518055, P.R. China.
  • Linpeng Lv
    School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen 518055, P.R. China.
  • Mingzheng Zhang
    School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen 518055, P. R. China.
  • Zhefeng Chen
    School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen 518055, P. R. China.
  • Feng Pan
    Department of Radiation Oncology, China-Japan Union Hospital of Jilin University, Changchun, China.
  • Shunning Li
    School of Energy and Environment, City University of Hong Kong, Kowloon, Hong Kong 999077, P.R. China.

Keywords

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