|
|
|
Accurate electron affinity of atomic rhodium and fine structure of its anion |
| Jiayi Chen(陈嘉逸)1, Rui Zhang(张瑞)1, Wenru Jie(揭文茹)1, Qihan Liu(柳淇瀚)1, and Chuangang Ning(宁传刚)1,2,† |
1 Department of Physics, State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University, Beijing 100084, China;
2 Frontier Science Center for Quantum Information, Tsinghua University, Beijing 100084, China |
|
|
|
|
Abstract Rhodium (Rh) is a rare and expensive metal, mainly used as a catalyst. Investigating its electronic structure aids in elucidating the mechanisms that govern catalytic reactions. In this work, we employed the high-resolution slow-electron velocity-map imaging (SEVI) method to measure the electron affinity (EA) of Rh and the electronic structure of its atomic anion Rh$^{-}$. The EA of the Rh atom was determined to be 9216.8(4) cm$^{-1}$ or 1.14273(5) eV, representing a fourfold enhancement in precision over the previous best result. Moreover, the energy levels of Rh$^-$ were measured to be 0.41178(15) eV ($ {}^{3}{\rm F}_{2}$) and 0.28668(7) eV ($ {}^{3}{\rm F}_{3}$) above the ground state $^{3}{\rm F}_{4}$, with an accuracy improved by factors of 110 and 50, respectively, compared to earlier measurements.
|
Received: 03 February 2026
Revised: 05 March 2026
Accepted manuscript online: 13 March 2026
|
|
PACS:
|
32.10.Hq
|
(Ionization potentials, electron affinities)
|
| |
32.10.Fn
|
(Fine and hyperfine structure)
|
| |
32.80.Gc
|
(Photodetachment of atomic negative ions)
|
| |
37.10.Ty
|
(Ion trapping)
|
|
| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 12374244 and 12341401). |
Corresponding Authors:
Chuangang Ning
E-mail: ningcg@tsinghua.edu.cn
|
Cite this article:
Jiayi Chen(陈嘉逸), Rui Zhang(张瑞), Wenru Jie(揭文茹), Qihan Liu(柳淇瀚), and Chuangang Ning(宁传刚) Accurate electron affinity of atomic rhodium and fine structure of its anion 2026 Chin. Phys. B 35 063202
|
[1] Livingstone S E 1975 The Chemistry of Ruthenium, Rhodium, Palladium, Osmium, Iridium and Platinum (Oxford: Pergamon) p. 1179
[2] Qi X T, Li Y Z, Bai R P and Lan Y 2017 Acc. Chem. Res. 50 2799
[3] Shibata Y and Tanaka K 2012 Synthesis 44 323
[4] Fagnou K and Lautens M 2003 Chem. Rev. 103 169
[5] Dey S and Dhal G C 2020 Polytechnica 3 26
[6] Shelef M and Graham G W 1994 Catal. Rev. 36 433
[7] Azhar U, Iftikhar M T, Arif M, Rehman M A, Ibrahim T H and El-Kadri O M 2025 Int. J. Hydrog. Energy 101 1448
[8] Li B, Ding Y, Kim D Y, Ahuja R, Zou G and Mao H K 2011 Proc. Natl. Acad. Sci. USA 108 18618
[9] Lapointe S, Duari P and Gessner V H 2023 Chem. Sci. 14 3816
[10] Chen X L and Ning C G 2016 Phys. Rev. A 93 052508
[11] Lu Y Z, Zhao J, Tang R L, Fu X X and Ning C G 2020 J. Chem. Phys. 152 034302
[12] Feigerle C S, Corderman R R, Bobashev S V and Lineberger W C 1981 J. Chem. Phys. 74 1580
[13] Scheer M, Brodie C A, Bilodeau R C and Haugen H K 1998 Phys. Rev. A 58 2051
[14] Tang R L, Fu X X, Lu Y Z and Ning C G 2020 J. Chem. Phys. 152 114303
[15] Yan S T, Lu Y Z, Zhang R and Ning C G 2024 Chin. J. Chem. Phys. 37 1
[16] Song C X, Yan S T, Godefroid M, Bieron J, J onsson P, Gaigalas G, Ek- man J, Zhang X M, Chen C Y, Ning C G and Si R 2024 J. Chem. Phys. 160 214307
[17] Chen X L, Luo Z H, Li J M and Ning C G 2016 Sci. Rep. 6 24996
[18] Fu X X, Luo Z H, Chen X L, Li J M and Ning C G 2016 J. Chem. Phys. 145 164307
[19] Lu Y Z, Zhang R, Song C X, Chen C Y, Si R and Ning C G 2023 Chin. Phys. Lett. 40 093101
[20] Zhang R, Lu Y, Tang R and Ning C G 2023 J. Chem. Phys. 158 084303
[21] Lu Y, Tang R, Fu X and Ning C G 2019 Phys. Rev. A 99 062507
[22] Fu X X, Tang R L, Lu Y Z and Ning C G 2020 Chin. Phys. B 29 073201
[23] Tang R L, Lu Y Z, Liu H T and Ning C G 2021 Phys. Rev. A 103 L050801
[24] Tang R L, Si R, Fei Z J, Fu X X, Lu Y Z, Brage T, Liu H, Chen C and Ning C 2021 Phys. Rev. A 103 042817
[25] Zhang R, Lu Y Z, Yan S T and Ning C G 2025 Phys. Rev. A 111 023102
[26] Tang R L, Fu X X and Ning C G 2018 J. Chem. Phys. 149 134304
[27] Luo Z, Chen X, Li J and Ning C 2016 Phys. Rev. A 93 020501
[28] Ning C G and Lu Y Z 2022 J. Phys. Chem. Ref. Data 51 021502
[29] Wiley W C and McLaren I H 1955 Rev. Sci. Instrum. 26 1150
[30] Leon I, Yang Z, Liu H T and Wang L S 2014 Rev. Sci. Instrum. 85 083106
[31] Eppink A T J B and Parker D H 1997 Rev. Sci. Instrum. 68 3477
[32] Dick B 2013 Phys. Chem. Chem. Phys. 16 570
[33] Sansonetti J E and Martin W C 2005 J. Phys. Chem. Ref. Data 34 1559
[34] Wigner E P 1948 Phys. Rev. 73 1002
[35] Tang R L, Chen X L, Fu X X, Wang H and Ning C G 2018 Phys. Rev. A 98 020501 |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
Altmetric
|
|
blogs
Facebook pages
Wikipedia page
Google+ users
|
Online attention
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
View more on Altmetrics
|
|
|
