Effect of HOMO levels on chemiionization of substituted ethylenes by metastable helium atoms

Hideo Yamakado; Kohji Okamura; Keijiro Ohshimo; Naoki Kishimoto; Koichi Ohno

doi:10.1246/cl.1997.269

Effect of HOMO levels on chemiionization of substituted ethylenes by metastable helium atoms

Hideo Yamakado, Kohji Okamura, Keijiro Ohshimo, Naoki Kishimoto, Koichi Ohno

SCI - Chemistry

Tohoku University

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

14 Citations (Scopus)

Abstract

Chemiionization reactivity (Penning ionization cross section) of substituted ethylenes in collision with helium metastable atoms was studied by velocity-resolved Penning ionization electron spectroscopy. Collision energy dependences of ionization probabilities of π orbitals were found to correlate with the HOMO levels. The higher the HOMO levels, the more effectively the reactive site of the ethylenes is hit by metastable atoms because of increased attractive interactions.

Original language	English
Pages (from-to)	269-270
Number of pages	2
Journal	Chemistry Letters
Issue number	3
DOIs	https://doi.org/10.1246/cl.1997.269
Publication status	Published - 1997

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10.1246/cl.1997.269

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abstract = "Chemiionization reactivity (Penning ionization cross section) of substituted ethylenes in collision with helium metastable atoms was studied by velocity-resolved Penning ionization electron spectroscopy. Collision energy dependences of ionization probabilities of π orbitals were found to correlate with the HOMO levels. The higher the HOMO levels, the more effectively the reactive site of the ethylenes is hit by metastable atoms because of increased attractive interactions.",

author = "Hideo Yamakado and Kohji Okamura and Keijiro Ohshimo and Naoki Kishimoto and Koichi Ohno",

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doi = "10.1246/cl.1997.269",

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T1 - Effect of HOMO levels on chemiionization of substituted ethylenes by metastable helium atoms

AU - Yamakado, Hideo

AU - Okamura, Kohji

AU - Ohshimo, Keijiro

AU - Kishimoto, Naoki

AU - Ohno, Koichi

PY - 1997

Y1 - 1997

N2 - Chemiionization reactivity (Penning ionization cross section) of substituted ethylenes in collision with helium metastable atoms was studied by velocity-resolved Penning ionization electron spectroscopy. Collision energy dependences of ionization probabilities of π orbitals were found to correlate with the HOMO levels. The higher the HOMO levels, the more effectively the reactive site of the ethylenes is hit by metastable atoms because of increased attractive interactions.

AB - Chemiionization reactivity (Penning ionization cross section) of substituted ethylenes in collision with helium metastable atoms was studied by velocity-resolved Penning ionization electron spectroscopy. Collision energy dependences of ionization probabilities of π orbitals were found to correlate with the HOMO levels. The higher the HOMO levels, the more effectively the reactive site of the ethylenes is hit by metastable atoms because of increased attractive interactions.

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JO - Chemistry Letters

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Effect of HOMO levels on chemiionization of substituted ethylenes by metastable helium atoms

Abstract

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