An ab initio and experimental study of vibrational effects in low energy O ++C 2H 2 charge-transfer collisions

Kaori Fukuzawa; Toshio Matsushita; Keiji Morokuma; Dale J. Levandier; Yu Hui Chiu; Rainer A. Dressler; Edmond Murad; Anthony Midey; Skip Williams; Albert A. Viggiano

doi:10.1063/1.1385793

An ab initio and experimental study of vibrational effects in low energy O ⁺+C ₂H ₂ charge-transfer collisions

Kaori Fukuzawa, Toshio Matsushita, Keiji Morokuma, Dale J. Levandier, Yu Hui Chiu, Rainer A. Dressler, Edmond Murad, Anthony Midey, Skip Williams, Albert A. Viggiano

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

7 Citations (Scopus)

Abstract

High-temperature guided-ion beam measurements were performed to examine the role of low-frequency acetylene bending modes in low energy charge-transfer collisions. A variable temperature-selected ion drift tube apparatus was used to measure thermal energy rate coefficients. The translational energy dependence of the charge-transfer cross sections in three differnt energy regions was also described. It was found that the charge-transfer cross sections decreased up to 0.5 eV, remained constant between 0.5 eV and 1.5 eV, and increased dramatically above 1.7 eV. The results indicated that the charge-transfer reactions occurred through nonadiabatic transitions between quartet and doublet states.

Original language	English
Pages (from-to)	3184-3194
Number of pages	11
Journal	Journal of Chemical Physics
Volume	115
Issue number	7
DOIs	https://doi.org/10.1063/1.1385793
Publication status	Published - 2001 Aug 15
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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10.1063/1.1385793

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An ab initio and experimental study of vibrational effects in low energy O ⁺+C ₂H ₂ charge-transfer collisions. / Fukuzawa, Kaori; Matsushita, Toshio; Morokuma, Keiji; Levandier, Dale J.; Chiu, Yu Hui; Dressler, Rainer A.; Murad, Edmond; Midey, Anthony; Williams, Skip; Viggiano, Albert A.

In: Journal of Chemical Physics, Vol. 115, No. 7, 15.08.2001, p. 3184-3194.

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

Fukuzawa, Kaori ; Matsushita, Toshio ; Morokuma, Keiji ; Levandier, Dale J. ; Chiu, Yu Hui ; Dressler, Rainer A. ; Murad, Edmond ; Midey, Anthony ; Williams, Skip ; Viggiano, Albert A. / An ab initio and experimental study of vibrational effects in low energy O ⁺+C ₂H ₂ charge-transfer collisions. In: Journal of Chemical Physics. 2001 ; Vol. 115, No. 7. pp. 3184-3194.

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abstract = "High-temperature guided-ion beam measurements were performed to examine the role of low-frequency acetylene bending modes in low energy charge-transfer collisions. A variable temperature-selected ion drift tube apparatus was used to measure thermal energy rate coefficients. The translational energy dependence of the charge-transfer cross sections in three differnt energy regions was also described. It was found that the charge-transfer cross sections decreased up to 0.5 eV, remained constant between 0.5 eV and 1.5 eV, and increased dramatically above 1.7 eV. The results indicated that the charge-transfer reactions occurred through nonadiabatic transitions between quartet and doublet states.",

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AU - Fukuzawa, Kaori

AU - Matsushita, Toshio

AU - Morokuma, Keiji

AU - Levandier, Dale J.

AU - Chiu, Yu Hui

AU - Dressler, Rainer A.

AU - Murad, Edmond

AU - Midey, Anthony

AU - Williams, Skip

AU - Viggiano, Albert A.

PY - 2001/8/15

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AB - High-temperature guided-ion beam measurements were performed to examine the role of low-frequency acetylene bending modes in low energy charge-transfer collisions. A variable temperature-selected ion drift tube apparatus was used to measure thermal energy rate coefficients. The translational energy dependence of the charge-transfer cross sections in three differnt energy regions was also described. It was found that the charge-transfer cross sections decreased up to 0.5 eV, remained constant between 0.5 eV and 1.5 eV, and increased dramatically above 1.7 eV. The results indicated that the charge-transfer reactions occurred through nonadiabatic transitions between quartet and doublet states.

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An ab initio and experimental study of vibrational effects in low energy O ⁺+C ₂H ₂ charge-transfer collisions

Abstract

ASJC Scopus subject areas

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