Spectroscopic characterization of clusters is crucial to understanding the structures and reaction mechanisms at the microscopic level, but it has been proven to be a grand challenge for neutral clusters because the absence of a charge makes it difficult for the size selection and detection. Infrared (IR) spectroscopy based on threshold photoionization using a tunable vacuum ultraviolet free electron laser (VUV-FEL) has recently been developed in the lab. The IR-VUV depletion and IR+VUV enhancement spectroscopic techniques open new avenues for size-selected IR spectroscopies of a large variety of neutral clusters without confinement (i.e., an ultraviolet chromophore, a messenger tag, or a host matrix). The spectroscopic principles have been demonstrated by investigations of some neutral water clusters and some metal carbonyls. Here, the spectroscopic principles and their applications for neutral clusters are reviewed.
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February 2021
Research Article|
February 01 2021
Infrared spectroscopy of neutral clusters based on a vacuum ultraviolet free electron laser† Available to Purchase
Gang Li;
Gang Li
a
State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences
, Dalian 116023, China
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Chong Wang;
Chong Wang
a
State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences
, Dalian 116023, China
b
University of Chinese Academy of Sciences
, Beijing 100049, China
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Hui-jun Zheng;
Hui-jun Zheng
a
State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences
, Dalian 116023, China
b
University of Chinese Academy of Sciences
, Beijing 100049, China
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Tian-tong Wang;
Tian-tong Wang
a
State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences
, Dalian 116023, China
b
University of Chinese Academy of Sciences
, Beijing 100049, China
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Hua Xie;
Hua Xie
a
State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences
, Dalian 116023, China
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Xue-ming Yang;
Xue-ming Yang
a
State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences
, Dalian 116023, China
c
Department of Chemistry, School of Science, Southern University of Science and Technology
, Shenzhen 518055, China
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Ling Jiang
Ling Jiang
*
a
State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences
, Dalian 116023, China
*Author to whom correspondence should be addressed. E-mail: [email protected]
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Gang Li
1
Chong Wang
1,2
Hui-jun Zheng
1,2
Tian-tong Wang
1,2
Hua Xie
1
Xue-ming Yang
1,3
Ling Jiang
1,*
a
State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences
, Dalian 116023, China
b
University of Chinese Academy of Sciences
, Beijing 100049, China
c
Department of Chemistry, School of Science, Southern University of Science and Technology
, Shenzhen 518055, China
*Author to whom correspondence should be addressed. E-mail: [email protected]
†
Part of special topic of “the New Advanced Experimental Techniques on Chemical Physics”.
Chin. J. Chem. Phys. 34, 51–60 (2021)
Article history
Received:
January 29 2021
Accepted:
February 16 2021
Citation
Gang Li, Chong Wang, Hui-jun Zheng, Tian-tong Wang, Hua Xie, Xue-ming Yang, Ling Jiang; Infrared spectroscopy of neutral clusters based on a vacuum ultraviolet free electron laser. Chin. J. Chem. Phys. 1 February 2021; 34 (1): 51–60. https://doi.org/10.1063/1674-0068/cjcp2101018
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