Formation of phosphorus monobromide (PBr) and phosphorus monoiodide (PI) radicals through direct radiative association: Prospects for astrochemical environments

doi:10.1088/1674-1056/adfdc7

中国物理B ›› 2026, Vol. 35 ›› Issue (3): 33301-033301.doi: 10.1088/1674-1056/adfdc7

Formation of phosphorus monobromide (PBr) and phosphorus monoiodide (PI) radicals through direct radiative association: Prospects for astrochemical environments

Qinghui Wei(魏庆卉)¹, Yang Chen(陈扬)¹, Amaury A. de Almeida², Carmen M. Andreazza³, Hongjing Liang(梁红静)^1,4,†, and Bing Yan(闫冰)^1,‡

1 Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China;
2 Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Rua do Matão 1226, 05508-090, São Paulo, SP, Brazil;
3 Instituto de Geoci. encias e Ci. encias Exatas, Universidade Estadual Paulista, Av. 24A, 13506-900, Rio Claro SP, Brazil;
4 College of Science, Jilin Institute of Chemical Technology, Jilin 132022, China

收稿日期:2025-06-13 修回日期:2025-07-21 接受日期:2025-08-21 出版日期:2026-02-11 发布日期:2026-03-12
通讯作者: Hongjing Liang, Bing Yan E-mail:lianghongjing@jlict.edu.cn;yanbing@jlu.edu.cn
基金资助:
Project supported by the Science and Technology Development Plan Project of Jilin Province, China (Grant No. YDZJ202201ZYTS314), the National Natural Science Foundation of China (Grant Nos. 12274178 and 11874177),

Formation of phosphorus monobromide (PBr) and phosphorus monoiodide (PI) radicals through direct radiative association: Prospects for astrochemical environments

Qinghui Wei(魏庆卉)¹, Yang Chen(陈扬)¹, Amaury A. de Almeida², Carmen M. Andreazza³, Hongjing Liang(梁红静)^1,4,†, and Bing Yan(闫冰)^1,‡

1 Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China;
2 Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Rua do Matão 1226, 05508-090, São Paulo, SP, Brazil;
3 Instituto de Geoci. encias e Ci. encias Exatas, Universidade Estadual Paulista, Av. 24A, 13506-900, Rio Claro SP, Brazil;
4 College of Science, Jilin Institute of Chemical Technology, Jilin 132022, China

Received:2025-06-13 Revised:2025-07-21 Accepted:2025-08-21 Online:2026-02-11 Published:2026-03-12
Contact: Hongjing Liang, Bing Yan E-mail:lianghongjing@jlict.edu.cn;yanbing@jlu.edu.cn
Supported by:
Project supported by the Science and Technology Development Plan Project of Jilin Province, China (Grant No. YDZJ202201ZYTS314), the National Natural Science Foundation of China (Grant Nos. 12274178 and 11874177),

摘要/Abstract

摘要： The cross sections and rate constants for the formation of phosphorus monobromide (PBr) and phosphorus monoiodide (PI) radicals through radiative association have been theoretically estimated using fully quantum mechanical methods. For temperatures ranging from 10 K to 15000 K, the thermal rate coefficients are found to vary from 2.86$\times$10$^{-23}$ cm$^3\cdot$s$^{-1}$ to 1.20$\times$10$^{-18}$ cm$^3\cdot$s$^{-1}$ and from 7.73$\times$10$^{-24}$ cm$^3\cdot$s$^{-1}$ cm$^3\cdot$s$^{-1}$ to 1.12$\times$10$^{-18}$ cm$^3\cdot$s$^{-1}$ for PBr and PI, respectively. Implications of PBr and PI radiative association to various astrochemical environments are briefly discussed.

关键词: PBr and PI radicals, radiative association, molecular data, molecular process

Abstract: The cross sections and rate constants for the formation of phosphorus monobromide (PBr) and phosphorus monoiodide (PI) radicals through radiative association have been theoretically estimated using fully quantum mechanical methods. For temperatures ranging from 10 K to 15000 K, the thermal rate coefficients are found to vary from 2.86$\times$10$^{-23}$ cm$^3\cdot$s$^{-1}$ to 1.20$\times$10$^{-18}$ cm$^3\cdot$s$^{-1}$ and from 7.73$\times$10$^{-24}$ cm$^3\cdot$s$^{-1}$ cm$^3\cdot$s$^{-1}$ to 1.12$\times$10$^{-18}$ cm$^3\cdot$s$^{-1}$ for PBr and PI, respectively. Implications of PBr and PI radiative association to various astrochemical environments are briefly discussed.

Key words: PBr and PI radicals, radiative association, molecular data, molecular process

中图分类号: (Vibration-rotation analysis)

33.20.Vq

34.50.Cx (Elastic; ultracold collisions) 98.38.Bn (Atomic, molecular, chemical, and grain processes) 95.30.Ft (Molecular and chemical processes and interactions)

Qinghui Wei(魏庆卉), Yang Chen(陈扬), Amaury A. de Almeida, Carmen M. Andreazza, Hongjing Liang(梁红静), and Bing Yan(闫冰). Formation of phosphorus monobromide (PBr) and phosphorus monoiodide (PI) radicals through direct radiative association: Prospects for astrochemical environments[J]. 中国物理B, 2026, 35(3): 33301-033301.

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Formation of phosphorus monobromide (PBr) and phosphorus monoiodide (PI) radicals through direct radiative association: Prospects for astrochemical environments

Formation of phosphorus monobromide (PBr) and phosphorus monoiodide (PI) radicals through direct radiative association: Prospects for astrochemical environments

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