Based on our previous analysis of electron affinities of atoms and structures of atomic negative ions [J. Phys. Chem. Ref. Data 51, 021502 (2022)], this review provides a concise presentation of the electron affinities of atoms. We briefly describe and compare three commonly used experimental methods for determining electron affinities to highlight their respective advantages and disadvantages. To illustrate the features of the slow electron velocity-map imaging method utilized in our current study, we conducted measurements on the electron affinity of As and excited states of its anion. The electron affinity of As was determined to be 6488.61(5) cm−1 or 0.804485(6) eV. The fine structures of As− were well resolved, with values of 1029.94(18) cm−1 or 0.12770(3) eV for 3P1 and 1343.04(55) cm−1 or 0.16652(7) eV for 3P0 above the ground state 3P2, respectively.
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February 2024
Review Article|
February 01 2024
Electron affinities in the periodic table and an example for As
Shuaiting Yan;
Shuaiting Yan
Department of Physics, State Key Laboratory of Low Dimensional
Quantum Physics, Frontier Science Center for Quantum Information, Tsinghua
University
, Beijing 100084, China
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Yuzhu Lu;
Yuzhu Lu
Department of Physics, State Key Laboratory of Low Dimensional
Quantum Physics, Frontier Science Center for Quantum Information, Tsinghua
University
, Beijing 100084, China
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Rui Zhang;
Rui Zhang
Department of Physics, State Key Laboratory of Low Dimensional
Quantum Physics, Frontier Science Center for Quantum Information, Tsinghua
University
, Beijing 100084, China
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Chuangang Ning
Chuangang Ning
*
Department of Physics, State Key Laboratory of Low Dimensional
Quantum Physics, Frontier Science Center for Quantum Information, Tsinghua
University
, Beijing 100084, China
*Author to whom correspondence should be
addressed. E-mail: [email protected]
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*Author to whom correspondence should be
addressed. E-mail: [email protected]
Chin. J. Chem. Phys. 37, 1–12 (2024)
Article history
Received:
July 27 2023
Accepted:
September 05 2023
Citation
Shuaiting Yan, Yuzhu Lu, Rui Zhang, Chuangang Ning; Electron affinities in the periodic table and an example for As. Chin. J. Chem. Phys. 1 February 2024; 37 (1): 1–12. https://doi.org/10.1063/1674-0068/cjcp2307071
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