A new method for determining rate coefficients without using analytical solution of rate equations

• Project/Area Number: 25410018
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Physical chemistry
• Research Institution: Hiroshima University
• Principal Investigator: Yamasaki Katsuyoshi 広島大学, 理学(系)研究科(研究院), 教授 (90210385)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000); Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: 反応速度定数 / 振動励起分子 / 振動緩和 / 振動エネルギー移動 / 2光子励起 / 反応分岐比 / 消光過程 / 信号応答理論 / Profile積分法

Outline of Final Research Achievements

The rate of each step in a multistep reaction cannot be determined by the method described in the textbooks of physical chemistry. The principal investigator has developed and established a new and simple method for kinetic analysis without solving rate equations. The new method of analysis has made it possible to determine the rate coefficients for reaction and quenching of electronically excited atoms and for multistep relaxation of vibrationally excited molecules. In addition, we have derived a general rule of vibrational energy transfer and found that the vibrational excitation of reactants is effective in enhancing chemical reactions. The findings of this research show that the new method of kinetic analysis is valuable and used for various purposes for the studies on chemical kinetics and dynamics.

Research Products

• [Journal Article] Enhancement of the NH2 + NO → OH + H + N2 reaction by vibrational excitation of NH2 (2015)
  • Author(s): Nanase Kohno, Akihiro Watanabe, Mari Ishibe, Hideo Kobayashi, Hiroshi Kohguchi, and Katsuyoshi Yamasaki
  • Journal Title: Chemical Physics Letters Volume: 638 Pages: 227-232
  • DOI: 10.1016/j.cplett.2015.08.058
  • Peer Reviewed
• [Journal Article] Kinetics and Dynamics on the Formation of S2(X3Σg-, a1Δg) in the S(1D) + OCS Reaction. (2014)
  • Author(s): 山下潤，藤原圭吾，高橋修，高口博志，山崎勝義
  • Journal Title: Journal of Physical Chemistry A Volume: 118 Issue: 40 Pages: 9330-9337
  • DOI: 10.1021/jp504912j
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] 化学にかかわる物理量を表す記号と用語の重要性 (2013)
  • Author(s): 山崎勝義
  • Journal Title: 化学と工業 Volume: 66 Pages: 811-813
  • Peer Reviewed
• [Journal Article] 反応速度論と平衡論の記述に関する注意点 (2013)
  • Author(s): 山崎勝義
  • Journal Title: 化学と教育 Volume: 12 Pages: 586-589
  • Peer Reviewed
• [Presentation] Kinetic study on the relaxation of vibrationally excited S2(a1Δg) by collisions with SF6 (2016)
  • Author(s): 原彩乃，後藤寛貴，内山太，高口博志，山崎勝義
  • Organizer: 24th International Symposium on Gas Kinetics and Related Phenomena
  • Place of Presentation: University of York(York, UK)
  • Year and Date: 2016-07-17
  • Int'l Joint Research
• [Presentation] Detection of sulfur atoms (1D and 3P) and branching ratio between reaction and quenching in the S(1D) + OCS system (2016)
  • Author(s): 後藤寛貴，谷本遥，宮地信和，高口博志，山崎勝義
  • Organizer: 32th Symposium on Chemical Kinetics and Dynamics
  • Place of Presentation: 大宮ソニックシティ(さいたま市)
  • Year and Date: 2016-06-01
  • Int'l Joint Research
• [Presentation] Kinetic study on the vibrational relaxation of S2(a1Δg) by collisions with SF6 (2016)
  • Author(s): 原彩乃，後藤寛貴，内山太，高口博志，山崎勝義
  • Organizer: 32th Symposium on Chemical Kinetics and Dynamics
  • Place of Presentation: 大宮ソニックシティ(さいたま市)
  • Year and Date: 2016-06-01
  • Int'l Joint Research
• [Presentation] Chemical reaction and energy transfer of vibrationally excited molecules (2015)
  • Author(s): 山崎勝義
  • Organizer: Japan-Asia Youth Exchange Program in Science
  • Place of Presentation: 広島大学(東広島市)
  • Year and Date: 2015-08-05
  • Int'l Joint Research
• [Presentation] Rate coefficients for vibrational relaxation of S2(a1Δg, v ≦ 9) by collisions with He (2015)
  • Author(s): 後藤寛貴，藤原圭吾，山下潤，高口博志，山崎勝義
  • Organizer: 31th Symposium on Chemical Kinetics and Dynamics
  • Place of Presentation: 北海道大学(札幌市)
  • Year and Date: 2015-06-03
  • Int'l Joint Research
• [Presentation] Kinetic Study on the Vibrational Excited OH(X2Π) by Collisions with Rare Gases. (2014)
  • Author(s): 門築ちひろ，河野七瀬，篠原美夜，高口博志，山崎勝義
  • Organizer: The 11th Nano Bio Info Chemistry Symposium
  • Place of Presentation: 広島大学(東広島市)
  • Year and Date: 2014-12-13
• [Presentation] Kinetic Study on the Relaxation of by S2(a1Δg, X3Σg-) Collisions with He. (2014)
  • Author(s): 藤原圭吾，山下潤，高口博志，山崎勝義
  • Organizer: The 11th Nano Bio Info Chemistry Symposium
  • Place of Presentation: 広島大学(東広島市)
  • Year and Date: 2014-12-13
• [Presentation] 振動励起OHのHeおよびArによる緩和過程の速度論的研究 (2014)
  • Author(s): 門築ちひろ，河野七瀬，篠原美夜，高口博志，山崎勝義
  • Organizer: 第8回分子科学討論会
  • Place of Presentation: 広島大学(東広島市)
  • Year and Date: 2014-09-21 – 2014-09-24
• [Presentation] Kinetic Study on the Vibrational Relaxation of OH(X2Π) by Collisions with He and Ar. (2014)
  • Author(s): 門築ちひろ，河野七瀬，篠原美夜，高口博志，山崎勝義
  • Organizer: 30th Symposium on Chemical Kinetics and Dynamics
  • Place of Presentation: イーグレ姫路(姫路市)
  • Year and Date: 2014-06-04 – 2014-06-06
• [Presentation] Kinetic Study on Relaxation of Vibrationally Excited S2(a1Δg) by Collisions with Nonpolar Molecules. (2014)
  • Author(s): 藤原圭吾，内山大，高口博志，山崎勝義
  • Organizer: 30th Symposium on Chemical Kinetics and Dynamics
  • Place of Presentation: イーグレ姫路(姫路市)
  • Year and Date: 2014-06-04 – 2014-06-06
• [Presentation] Rate Coefficients for Extremely Slow Vibrational Relaxation of OH(X2Π, v = 1－4) by Collisions with He. (2013)
  • Author(s): 門築ちひろ，河野七瀬，山下潤，高口博志，山崎勝義
  • Organizer: 29th Symposium on Chemical Kinetics and Dynamics
  • Place of Presentation: 東北大学(片平さくらホール)
• [Presentation] Kinetic Study on Relaxation of Vibrationally Excited S2(X3Σg-, a1Δg) by Collisions with He. (2013)
  • Author(s): 藤原圭吾, 山下潤, 高口博志, 山崎勝義
  • Organizer: 29th Symposium on Chemical Kinetics and Dynamics
  • Place of Presentation: 東北大学(片平さくらホール)
• [Presentation] 振動励起OHのHeによる超低速緩和過程の速度定数 (2013)
  • Author(s): 門築ちひろ，河野七瀬，高口博志，山崎勝義
  • Organizer: 2013年日本化学会中国四国支部大会
  • Place of Presentation: 広島大学(東広島)
• [Presentation] 振動励起S2(X3Σg-, a1Δg)のHeによる緩和過程の速度定数 (2013)
  • Author(s): 藤原圭吾, 山下潤, 高口博志, 山崎勝義
  • Organizer: 2013年日本化学会中国四国支部大会
  • Place of Presentation: 広島大学(東広島)
• [Book] 物理化学Monographシリーズ(上) 第1版，第4刷 (2015)
  • Author(s): 山崎勝義
  • Total Pages: 400
  • Publisher: 広島大学出版会
• [Book] 物理化学Monographシリーズ(下) 第1版，第4刷 (2015)
  • Author(s): 山崎勝義
  • Total Pages: 485
  • Publisher: 広島大学出版会
• [Book] 物理化学Monographシリーズ(上) 第1版，第3刷 (2014)
  • Author(s): 山崎勝義
  • Total Pages: 400
  • Publisher: 広島大学出版会
• [Book] 物理化学Monographシリーズ(下) 第1版，第3刷 (2014)
  • Author(s): 山崎勝義
  • Total Pages: 465
  • Publisher: 広島大学出版会
• [Book] 物理化学Monographシリーズ(上) (2013)
  • Author(s): 山崎勝義
  • Total Pages: 400
  • Publisher: 広島大学出版会
• [Book] 物理化学Monographシリーズ(下) (2013)
  • Author(s): 山崎勝義
  • Total Pages: 445
  • Publisher: 広島大学出版会
• [Book] 「成分」と「基底」の変換の相違点（第2版） (2013)
  • Author(s): 山崎勝義
  • Total Pages: 41
  • Publisher: 分子科学会
• [Remarks] 反応物理化学研究グループ
  • URL: http://home.hiroshima-u.ac.jp/pchem/
• [Remarks] 山崎グループ研究内容
  • URL: http://home.hiroshima-u.ac.jp/kyam/pages/results/
• [Remarks] 反応物理化学研究グループ
  • URL: http://home.hiroshima-u.ac.jp/pchem/
• [Remarks] 山崎グループ研究内容
  • URL: http://home.hiroshima-u.ac.jp/kyam/pages/results/