TY - JOUR
T1 - Photofragment imaging from mass-selected ions using a reflectron mass spectrometer. II
T2 - Formation mechanism of MgF+ in the photodissociation of Mg+FCH3 complex
AU - Okutsu, Kenichi
AU - Ohshimo, Keijiro
AU - Hoshino, Hiroshi
AU - Koyasu, Kiichirou
AU - Misaizu, Fuminori
N1 - Funding Information:
The authors are grateful to Mr. Kenichiro Yamazaki for his helpful assistance of the experiment. The authors are also grateful to Dr. Manabu Kanno for fruitful discussion on the theoretical calculations. The authors also thank Dr. Takuya Horio for providing his computer program for analysis of images based on the p-BASEX method. The authors are also grateful to Professor Yoshihiro Yamakita for the development of this apparatus and for his helpful comments. This work has been supported by a Grant-in-Aid for Scientific Research from the Japan Society for the Promotion of Science (JSPS) . Calculations were partly performed using the Research Center for Computational Science, Okazaki, Japan.
Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.
PY - 2015/4/30
Y1 - 2015/4/30
N2 - We have observed fragment-ion images by ultraviolet photodissociation of Mg+FCH3 complex using a reflectron time-of-flight mass spectrometer coupled with an imaging detector. Fourth harmonic of a Nd:YAG laser was used for excitation of Mg+FCH3 from 12A1 to 22A1 state, which has a main character corresponding to Mg+ 2P ← 2S transition. We observed images of MgF+ fragments and determined the kinetic energy release and angular distributions. Among the calculated potential energy curves of Mg+FCH3 along FC bond length, the 22A1 state was repulsive. The observed energy and angular distributions were consistent with fast MgF+ formation on the repulsive potential energy curve.
AB - We have observed fragment-ion images by ultraviolet photodissociation of Mg+FCH3 complex using a reflectron time-of-flight mass spectrometer coupled with an imaging detector. Fourth harmonic of a Nd:YAG laser was used for excitation of Mg+FCH3 from 12A1 to 22A1 state, which has a main character corresponding to Mg+ 2P ← 2S transition. We observed images of MgF+ fragments and determined the kinetic energy release and angular distributions. Among the calculated potential energy curves of Mg+FCH3 along FC bond length, the 22A1 state was repulsive. The observed energy and angular distributions were consistent with fast MgF+ formation on the repulsive potential energy curve.
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U2 - 10.1016/j.cplett.2015.04.023
DO - 10.1016/j.cplett.2015.04.023
M3 - Article
AN - SCOPUS:84928905596
VL - 630
SP - 57
EP - 61
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
ER -