中国物理B ›› 2021, Vol. 30 ›› Issue (11): 113302-113302.doi: 10.1088/1674-1056/abff45

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Geometric structure of N2Oq+ (q = 5, 6) studied by Ne8+ ion-induced Coulomb explosion imaging

Xi Zhao(赵曦)1, Xu Shan(单旭)1,†, Xiaolong Zhu(朱小龙)2, Lei Chen(陈磊)1, Zhenjie Shen(沈镇捷)1, Wentian Feng(冯文天)2, Dalong Guo(郭大龙)2, Dongmei Zhao(赵冬梅)2, Ruitian Zhang(张瑞田)2, Yong Gao(高永)2, Zhongkui Huang(黄忠魁)2, Shaofeng Zhang(张少锋)2, Xinwen Ma(马新文)2,‡, and Xiangjun Chen(陈向军)1   

  1. 1 Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China;
    2 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
  • 收稿日期:2021-03-31 修回日期:2021-04-30 接受日期:2021-05-10 出版日期:2021-10-13 发布日期:2021-10-22
  • 通讯作者: Xu Shan, Xinwen Ma E-mail:xshan@ustc.edu.cn;x.ma@impcas.ac.cn
  • 基金资助:
    Project supported by the National Key Research and Development Program of China (Grant Nos. 2017YFA0402300 and 2017YFA0303501) and the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB34000000). The authors thank the staff of the 320-kV platform for multidisciplinary research with highly charged ions at the Institute of Modern Physics, Chinese Academy of Sciences, for their technical support.

Geometric structure of N2Oq+ (q = 5, 6) studied by Ne8+ ion-induced Coulomb explosion imaging

Xi Zhao(赵曦)1, Xu Shan(单旭)1,†, Xiaolong Zhu(朱小龙)2, Lei Chen(陈磊)1, Zhenjie Shen(沈镇捷)1, Wentian Feng(冯文天)2, Dalong Guo(郭大龙)2, Dongmei Zhao(赵冬梅)2, Ruitian Zhang(张瑞田)2, Yong Gao(高永)2, Zhongkui Huang(黄忠魁)2, Shaofeng Zhang(张少锋)2, Xinwen Ma(马新文)2,‡, and Xiangjun Chen(陈向军)1   

  1. 1 Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China;
    2 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
  • Received:2021-03-31 Revised:2021-04-30 Accepted:2021-05-10 Online:2021-10-13 Published:2021-10-22
  • Contact: Xu Shan, Xinwen Ma E-mail:xshan@ustc.edu.cn;x.ma@impcas.ac.cn
  • Supported by:
    Project supported by the National Key Research and Development Program of China (Grant Nos. 2017YFA0402300 and 2017YFA0303501) and the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB34000000). The authors thank the staff of the 320-kV platform for multidisciplinary research with highly charged ions at the Institute of Modern Physics, Chinese Academy of Sciences, for their technical support.

摘要: We report the study on the complete three-body Coulomb explosion (CE) of N2Oq+ (q = 5, 6) induced by 56-keV/u Ne8+ ion collision with N2O gaseous molecule. Six CE channels for N2O5+ and seven for N2O6+ are identified by measuring three ionic fragments and the charge-changed projectile in quadruple coincidence. Correspondingly the kinetic energy release (KER) and momentum correlation angle (MCA) distributions of three ionic fragments for each of the CE channels are also deduced. Numerical computation is presented to reconstruct the geometric structure of N2Oq+ prior to dissociation based on the measured KER and MCA. The N-N and N-O bond lengths and the N-N-O bond angles of N2Oq+ for each of the channels are determined.

关键词: Coulomb explosion, kinetic energy release, molecular geometry, ion collision, nitrous oxide (N2O)

Abstract: We report the study on the complete three-body Coulomb explosion (CE) of N2Oq+ (q = 5, 6) induced by 56-keV/u Ne8+ ion collision with N2O gaseous molecule. Six CE channels for N2O5+ and seven for N2O6+ are identified by measuring three ionic fragments and the charge-changed projectile in quadruple coincidence. Correspondingly the kinetic energy release (KER) and momentum correlation angle (MCA) distributions of three ionic fragments for each of the CE channels are also deduced. Numerical computation is presented to reconstruct the geometric structure of N2Oq+ prior to dissociation based on the measured KER and MCA. The N-N and N-O bond lengths and the N-N-O bond angles of N2Oq+ for each of the channels are determined.

Key words: Coulomb explosion, kinetic energy release, molecular geometry, ion collision, nitrous oxide (N2O)

中图分类号:  (Electronic excitation and ionization of molecules)

  • 34.50.Gb
34.80.Ht (Dissociation and dissociative attachment)