Photo-double ionization of water studied by threshold photoelectrons coincidence spectroscopy

S. Y. Truong; A. J. Yencha; A. M. Juarez; S. J. Cavanagh; P. Bolognesi; G. C. King

doi:10.1016/j.cplett.2009.04.036

Photo-double ionization of water studied by threshold photoelectrons coincidence spectroscopy

S. Y. Truong, A. J. Yencha^*, A. M. Juarez, S. J. Cavanagh, P. Bolognesi, G. C. King

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

Photo-double ionization of gaseous water has been investigated in the 30-53 eV energy range using synchrotron radiation and the threshold photoelectrons coincidence (TPEsCO) method. The TPEsCO spectrum of H₂O, encompassing the formation of the over(X, ̃)³B₁, 1 ¹A₁, over(b, ̃)¹B₁ and 2 ¹A₁ states of H₂O²⁺, was recorded. The TPEsCO spectrum is very broad with no discernable vibrational structure. In addition, the TPE spectrum of H₂O for the formation of H₂O⁺ was recorded simultaneously. Indirect double ionization of H₂O by dissociative autoionization of H₂O⁺ is found to play a major role in the TPEsCO spectrum well below the lowest vertical double IP.

Original language	English
Pages (from-to)	41-44
Number of pages	4
Journal	Chemical Physics Letters
Volume	474
Issue number	1-3
DOIs	https://doi.org/10.1016/j.cplett.2009.04.036
Publication status	Published - 25 May 2009
Externally published	Yes

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title = "Photo-double ionization of water studied by threshold photoelectrons coincidence spectroscopy",

abstract = "Photo-double ionization of gaseous water has been investigated in the 30-53 eV energy range using synchrotron radiation and the threshold photoelectrons coincidence (TPEsCO) method. The TPEsCO spectrum of H2O, encompassing the formation of the over(X,{\~ }) 3B1, 1 1A1, over(b,{\~ }) 1B1 and 2 1A1 states of H2O2+, was recorded. The TPEsCO spectrum is very broad with no discernable vibrational structure. In addition, the TPE spectrum of H2O for the formation of H2O+ was recorded simultaneously. Indirect double ionization of H2O by dissociative autoionization of H2O+ is found to play a major role in the TPEsCO spectrum well below the lowest vertical double IP.",

author = "Truong, \{S. Y.\} and Yencha, \{A. J.\} and Juarez, \{A. M.\} and Cavanagh, \{S. J.\} and P. Bolognesi and King, \{G. C.\}",

year = "2009",

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doi = "10.1016/j.cplett.2009.04.036",

language = "English",

volume = "474",

pages = "41--44",

journal = "Chemical Physics Letters",

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TY - JOUR

T1 - Photo-double ionization of water studied by threshold photoelectrons coincidence spectroscopy

AU - Truong, S. Y.

AU - Yencha, A. J.

AU - Juarez, A. M.

AU - Cavanagh, S. J.

AU - Bolognesi, P.

AU - King, G. C.

PY - 2009/5/25

Y1 - 2009/5/25

N2 - Photo-double ionization of gaseous water has been investigated in the 30-53 eV energy range using synchrotron radiation and the threshold photoelectrons coincidence (TPEsCO) method. The TPEsCO spectrum of H2O, encompassing the formation of the over(X, ̃) 3B1, 1 1A1, over(b, ̃) 1B1 and 2 1A1 states of H2O2+, was recorded. The TPEsCO spectrum is very broad with no discernable vibrational structure. In addition, the TPE spectrum of H2O for the formation of H2O+ was recorded simultaneously. Indirect double ionization of H2O by dissociative autoionization of H2O+ is found to play a major role in the TPEsCO spectrum well below the lowest vertical double IP.

AB - Photo-double ionization of gaseous water has been investigated in the 30-53 eV energy range using synchrotron radiation and the threshold photoelectrons coincidence (TPEsCO) method. The TPEsCO spectrum of H2O, encompassing the formation of the over(X, ̃) 3B1, 1 1A1, over(b, ̃) 1B1 and 2 1A1 states of H2O2+, was recorded. The TPEsCO spectrum is very broad with no discernable vibrational structure. In addition, the TPE spectrum of H2O for the formation of H2O+ was recorded simultaneously. Indirect double ionization of H2O by dissociative autoionization of H2O+ is found to play a major role in the TPEsCO spectrum well below the lowest vertical double IP.

UR - https://www.scopus.com/pages/publications/65549160904

U2 - 10.1016/j.cplett.2009.04.036

DO - 10.1016/j.cplett.2009.04.036

M3 - Article

SN - 0009-2614

VL - 474

SP - 41

EP - 44

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-3

ER -

Photo-double ionization of water studied by threshold photoelectrons coincidence spectroscopy

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