Solid–water interfaces are crucial to many physical and chemical processes and are extensively studied using surface-specific sum-frequency generation (SFG) spectroscopy. To establish clear correlations between specific spectral signatures and distinct interfacial water structures, theoretical calculations using molecular dynamics (MD) simulations are required. These MD simulations typically need relatively long trajectories (a few nanoseconds) to achieve reliable SFG response function calculations via the dipole moment–polarizability time correlation function. However, the requirement for long trajectories limits the use of computationally expensive techniques, such as ab initio MD (AIMD) simulations, particularly for complex solid–water interfaces. In this work, we present a pathway for calculating vibrational spectra (IR, Raman, and SFG) of solid–water interfaces using machine learning (ML)-accelerated methods. We employ both the dipole moment–polarizability correlation function and the surface-specific velocity–velocity correlation function approaches to calculate SFG spectra. Our results demonstrate the successful acceleration of AIMD simulations and the calculation of SFG spectra using ML methods. This advancement provides an opportunity to calculate SFG spectra for complicated solid–water systems more rapidly and at a lower computational cost with the aid of ML.
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Revealing the molecular structures of α-Al2O3(0001)–water interface by machine learning based computational vibrational spectroscopy
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28 September 2024
Research Article|
September 24 2024
Revealing the molecular structures of α-Al2O3(0001)–water interface by machine learning based computational vibrational spectroscopy
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Xianglong Du
;
Xianglong Du
(Data curation, Formal analysis, Methodology, Writing – original draft)
1
State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, Discipline of Intelligent Instrument and Equipment, Xiamen University
, Xiamen 361005, China
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Weizhi Shao;
Weizhi Shao
(Methodology)
2
Yau Mathematical Sciences Center, Tsinghua University
, Beijing 100084, China
3
AI for Science Institute
, Beijing 100080, China
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Chenglong Bao;
Chenglong Bao
(Methodology)
2
Yau Mathematical Sciences Center, Tsinghua University
, Beijing 100084, China
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Linfeng Zhang
;
Linfeng Zhang
(Methodology)
3
AI for Science Institute
, Beijing 100080, China
4
DP Technology
, Beijing 100080, China
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Jun Cheng
;
Jun Cheng
a)
(Conceptualization, Funding acquisition, Project administration, Supervision, Writing – review & editing)
1
State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, Discipline of Intelligent Instrument and Equipment, Xiamen University
, Xiamen 361005, China
5
Laboratory of AI for Electrochemistry (AI4EC), Tan Kah Kee Innovation Laboratory (IKKEM)
, Xiamen 361005, China
6
Institute of Artificial Intelligence, Xiamen University
, Xiamen 361005, China
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Fujie Tang
Fujie Tang
a)
(Conceptualization, Formal analysis, Methodology, Project administration, Resources, Software, Supervision, Writing – original draft, Writing – review & editing)
5
Laboratory of AI for Electrochemistry (AI4EC), Tan Kah Kee Innovation Laboratory (IKKEM)
, Xiamen 361005, China
6
Institute of Artificial Intelligence, Xiamen University
, Xiamen 361005, China
7
Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University
, Xiamen 361005, China
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Xianglong Du
1
Weizhi Shao
2,3
Chenglong Bao
2
Linfeng Zhang
3,4
Jun Cheng
1,5,6,a)
Fujie Tang
5,6,7,a)
1
State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, Discipline of Intelligent Instrument and Equipment, Xiamen University
, Xiamen 361005, China
2
Yau Mathematical Sciences Center, Tsinghua University
, Beijing 100084, China
3
AI for Science Institute
, Beijing 100080, China
4
DP Technology
, Beijing 100080, China
5
Laboratory of AI for Electrochemistry (AI4EC), Tan Kah Kee Innovation Laboratory (IKKEM)
, Xiamen 361005, China
6
Institute of Artificial Intelligence, Xiamen University
, Xiamen 361005, China
7
Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University
, Xiamen 361005, China
J. Chem. Phys. 161, 124702 (2024)
Article history
Received:
July 21 2024
Accepted:
September 05 2024
Citation
Xianglong Du, Weizhi Shao, Chenglong Bao, Linfeng Zhang, Jun Cheng, Fujie Tang; Revealing the molecular structures of α-Al2O3(0001)–water interface by machine learning based computational vibrational spectroscopy. J. Chem. Phys. 28 September 2024; 161 (12): 124702. https://doi.org/10.1063/5.0230101
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