A study on theformation and dissociationof metastable ions by fragment coincidence and real-time trace

2012 Fiscal Year Final Research Report

• Project/Area Number: 22550014
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Physical chemistry
• Research Institution: Hiroshima University
• Principal Investigator: OKADA Kazumasa 広島大学, 大学院・理学研究科, 准教授 (90294511)
• Project Period (FY): 2010 – 2012
• Keywords: 軟X線光化学 / イオン同時計測

Research Abstract

When a molecule is excited at the inner-shell level, specific reactions are often observed such as bond fissions around the atomic site of excitation. The purpose of this study is, for some gaseous molecules, to establish the fragmentation processes by a measurement technique discriminating between the fast process of specific fissions and the relatively slow dissociation channel(s) following the energy relaxation. In particular, identification of the fragment ions and their formation and dissociation behavior are studied by a double fragment coincidence method.

Research Products

• [Journal Article] Photofragmentation of the K-shell excited perfluorocyclobutane probed by a multiple-ion coincidence technique (2012)
  • Author(s): K. Okada, T. Terashima, A. Suemitsu, I. H. Suzuki, S. Nagaoka, K. Tabayashi, Y. Tamenori
  • Journal Title: Phys. Conf. Ser Volume: 388 Pages: 022030
  • DOI: DOI:10.1088/1742-6596/388/2/022030
  • Peer Reviewed
• [Journal Article] Dissociative photoionization of perfluorocyclobutane and cis-1,1,2,2,3,4-hexafluorocyclobutane (2011)
  • Author(s): K. Okada, T. Nakashima, M. Sakai, A. Suemitsu, C. Huang, H. Yagi, H. Katayanagi, K. Mitsuke, K. Tabayashi
  • Journal Title: J. Phys. Conf. Ser Volume: 288
  • DOI: DOI:10.1088/1742-6596/288/1/012021
  • Peer Reviewed
• [Journal Article] Photofragmentation of the K-shell excited perfluorocyclobutane: anisotropies in the fragments and breakdown pathways (2011)
  • Author(s): K. Okada, A. Suemitsu, T. Terashima, Y. Iwasaki, Y. Tamenori, I. H. Suzuki, S. Nagaoka, K. Tabayashi
  • Journal Title: J. Mass Spectrom. Volume: 46 Pages: 635
  • Peer Reviewed
• [Journal Article] Effect of fluoro substitution on the fragmentation of the K-shell excited/ionized pyridine studied by electron impact (2011)
  • Author(s): M. Sakai, K. Okada
  • Journal Title: J. Mass Spectrom Volume: 46 Pages: 666
  • DOI: DOI:10.1002/jms.1936
  • Peer Reviewed
• [Presentation] Photofragmentation of perfluorocyclobutane at the C and F K-edges (2012)
  • Author(s): K. Okada, T. Terashima, A. Suemitsu, I. H. Suzuki, S. Nagaoka, K. Tabayashi, Y. Tamenori
  • Organizer: 12th International Conference on Electronic Spectroscopy and Structure
  • Place of Presentation: Saint-Malo, France
  • Year and Date: 2012-09-18
• [Presentation] Dissociative photoionization of perfluorocyclobutane studied by mass- resolved photoion imaging (2012)
  • Author(s): K. Okada, T. Nakashima, H. Katayanagi, A. Suemitsu, and K. Mitsuke
  • Organizer: 28th Symposium on Chemical Kinetics and Dynamics
  • Place of Presentation: Fukuoka.
  • Year and Date: 2012-06-07
• [Presentation] 内殻励起cis-ヘキサフルオロシクロブタンの光解離ダイナミクス (2011)
  • Author(s): 中島 徹,梶谷祐美子,岡田和正,末光 篤,為則雄祐,鈴木 功,長岡伸一
  • Organizer: 第5回分子科学討論会
  • Place of Presentation: 札幌
  • Year and Date: 2011-09-20
• [Presentation] Photofragmentation of the K-shell excited perfluorocyclobutane probed by a multiple-ion coincidence technique (2011)
  • Author(s): K. Okada, T. Terashima, A. Suemitsu, I. H. Suzuki, S. Nagaoka, K. Tabayashi, and Y. Tamenori
  • Organizer: 27th International Conference on Photonic, Electronic and Atomic Collisions
  • Place of Presentation: Belfast, Northern Ireland, UK.
  • Year and Date: 2011-07-28
• [Presentation] cis-ヘキサフルオロシクロブタンの炭素 K端での光吸収と解離 (2011)
  • Author(s): 梶谷祐美子,中島 徹,岡田和正,為則雄祐,鈴木 功,長岡伸一
  • Organizer: 第24回日本放射光学会年会
  • Place of Presentation: つくば
  • Year and Date: 2011-01-09
• [Remarks]
  • URL: http://home.hiroshima-u.ac.jp/okadak/