Acid-base Equilibrium in Protic Ionic Liquids

• Project/Area Number: 19750062
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Analytical chemistry
• Research Institution: Kyushu University
• Principal Investigator: KANZAKI Ryo Kyushu University, 大学院・理学研究院, 助教 (50363320)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥2,210,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥210,000); Fiscal Year 2008: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2007: ¥1,300,000 (Direct Cost: ¥1,300,000)
• Keywords: イオン液体 / 酸塩基理論 / プロトン伝導 / pHセンサー / 溶液化学 / プロトン性イオン液体 / 酸塩基平衡 / 自己解離定数 / 両性溶媒 / 電位差滴定 / 滴定カロリメトリー

Research Abstract

様々な組成のプロトン性イオン液体中における酸塩基平衡に関するいくつかの重要な反応熱力学量を決定し、その両性溶媒としての性質および酸塩基反応メカニズムを明らかにした.さらに典型的なプロトン性イオン液体である硝酸エチルアンモニウム中においていくつかの化合物の酸解離定数を決定し、このイオン液体が酸性溶媒であることを示した.

Research Products

• [Journal Article] Ion-ion interaction in Room Temperature Ionic liquid 1-ethyl-3-methylim idazolium tetrafluoroborate studied by large angle X-ray scattering expe riment and molecular dynamics simulations (2009)
  • Author(s): Ryo Kanzaki
  • Journal Title: Journal of Molecular Liquids (in press)
  • Peer Reviewed
• [Journal Article] basicity of aqueous mixtures of a protic ionic liquid, ethylammonium nitrate (2008)
  • Author(s): R. Kanzaki, K. Uchida, X. Song, Y. Umebayashi, S. Ishiguro
  • Journal Title: Analytical Sciences 24 Pages: 1347-1349
• [Journal Article] Liquid structure of N-butyl-Nmethylpyrrolidinium bis- (trifluoro-methanesulfonyl) amide ionic liquid studied by large angle X-ray scattering and molecular dynamics simulations (2008)
  • Author(s): S. Fukuda, M. Takeuchi, K. Fujii, R. Kanzaki, T. Takamuku, K. Chiba, H. Yamamoto, Y. Umebayashi, S. Ishiguro
  • Journal Title: Journal of Molecular Liquids 143 Pages: 2-7
• [Journal Article] Acidity and Basicity of Aqueous Mixtures of a Protic Ionic Liquid, Ethylammonium Nitrate (2008)
  • Author(s): Ryo Kanzaki
  • Journal Title: Analytical Sciences 24 Pages: 1347-1349
  • NAID: 10025207611
  • Peer Reviewed
• [Journal Article] Liquid structure of room-temperature ionic liquid, 1-ethyl-3-methyl-imidazolium bis-(trifluoromethanesulfonyl) imide (2008)
  • Author(s): Kenta Fujii
  • Journal Title: Journal of Physical Chemistry B 112 Pages: 4329-4336
  • Peer Reviewed
• [Journal Article] Liquid structure of N-butyl-N-methylpyrrolidinium bis-(trifluoromethane-sulfonyl) amide ionic liquid studied by large angle X-ray scattering and molecular dynamics simulations (2008)
  • Author(s): Shuhei Fukuda
  • Journal Title: Journal of Physical Chemistry B 112 Pages: 4329-4336
  • Peer Reviewed
• [Journal Article] 熱力学的測定法による非イオン性界面活性剤ミセル内部の構造の推定 (2008)
  • Author(s): 神崎亮
  • Journal Title: 熱測定 35 Pages: 10-18
  • NAID: 10025611948
  • Peer Reviewed
• [Journal Article] 熱ガ學的測定法による非イオン性界面活性剤ミセル内部の構造の推定 (2008)
  • Author(s): 神崎 亮
  • Journal Title: 熱測定 35 Pages: 10-18
  • Peer Reviewed
• [Journal Article] Liquid Structure of Room-Temperature Ionic Liquid, 1-Ethyl-3-methylimidazolium Bis-(trifluromethanesulfonyl) Imide (2008)
  • Author(s): Yasuhiro, Umebayashi
  • Journal Title: Journal of Physical Chemistry B (印刷中)
  • Peer Reviewed
• [Journal Article] Liquid structure of room-temperature ionic liquid, 1-ethyl-3-methylimidazolium bis- (trifluoromethanesulfonyl) imide (2007)
  • Author(s): K. Fujii, Y. Soejima, Y. Kyoshoin, S. Fukuda, R. Kanzaki, Y. Umebayashi, T. Yamaguchi, S. Ishiguro, T. Takamuku
  • Journal Title: Journal of Physical Chemistry B 112 Pages: 4329-4336
• [Journal Article] Acid-Base Property of Ethylammonium Nitrate Ionic Liquid Directly Obtained Using Ion-Selective Field Effect Transistor Electrode (2007)
  • Author(s): Ryo, Kanzaki
  • Journal Title: Chemistry Letters 26 Pages: 684-685
  • NAID: 10019936413
  • Peer Reviewed
• [Journal Article] 分子シミュレーションおよびX線回折法によるイオン液体の構造とダイナミクス (2007)
  • Author(s): 神崎 亮
  • Journal Title: アンサンブル 39 Pages: 18-21
• [Journal Article] Lithium-Ion Solvation in Room Temperature Ionic Liquids Involving bis-(Trifluoromethanesulfonyl) Imide Anion Studied by Raman Spectroscopy and DFT Calculations (2007)
  • Author(s): Yasuhiro, Umebayashi
  • Journal Title: Journal of Physical Chemistry B 111 Pages: 13028-13032
  • Peer Reviewed
• [Journal Article] Conformational structure of room temperature ionic liquid N-butyl-N-methyl-pyrrolidinium bis(trifluoromethanesulfonyl) imide-Raman spectroseopic atudy and DFT calculations- (2007)
  • Author(s): Takao, Fujimori
  • Journal Title: Journal of Molecular Liquid 131-132 Pages: 216-224
  • Peer Reviewed
• [Journal Article] 分光実験とMD法による溶液の液体構造とダイナミクス (2007)
  • Author(s): 藤井 健太
  • Journal Title: 九州大学情報基盤センター広報 6 Pages: 172-173
• [Journal Article] Ion-ion interaction in room temperature ionic liquid 1-ethyl-3-methylimidazolium tetrafluoroborate studied by large angle X-ray scattering experiment and molecular dynamics simulations
  • Author(s): R. Kanzaki, T. Mitsugi, S. Fukuda, K. Fujii, M. Takeuchi, Y. Soejima, T. Takamuku, T. Yamaguchi, Y. Umebayashi, S. Ishiguro
  • Journal Title: Journal of Molecular Liquids (in press)
• [Presentation] プロトン性イオン液体中における酸塩基性 (2008)
  • Author(s): 神崎 亮
  • Organizer: 第6回九州溶液化学懇談会
  • Place of Presentation: 福岡大学(福岡)
  • Year and Date: 2008-01-26
• [Presentation] Autoprotolysis in Protic Ionic Liquids of N-methylimidazolium and Carboxylic Acids (2008)
  • Author(s): Ryo Kanzaki, Xuedan Song, Tatsuya Shimoda, Shota Hara, Yasuhiro Umebayashi, Shin-ichi Ishiguro
  • Organizer: The 5th International and 7th China-Japan Joint Symposium on Calorimetry and Thermal Analysis (CATS 2008)
  • Place of Presentation: Dalian(China)
• [Presentation] プロトン性イオン液体のイオン性と酸塩基性 (2008)
  • Author(s): 神崎亮、宋雪旦、原祥太、梅林泰宏、石黒慎一
  • Organizer: 分析化学第57年会
  • Place of Presentation: 福岡大学(福岡)
• [Presentation] HEATS OF MIXING OF CARBOXYLIC ACIDS AND N-METHYLIMIDAZOLE (2008)
  • Author(s): Ryo Kanzaki, Xuedan Song, Tatsuya Shimoda, Yasuhiro Umebayashi, Shin-ichi Ishiguro
  • Organizer: 14th International Congress on Thermal Analysis and Calorimetry (14th ICTAC)
  • Place of Presentation: Sao Pedro (Brazil)
• [Presentation] プロトン性イオン液体-硝酸エチルアンモニウム-中における自己解離平衡の反応熱力学 (2008)
  • Author(s): 神崎亮、宋雪旦、梅林泰宏、石黒慎一
  • Organizer: 第44回熱測定討論会
  • Place of Presentation: つくば国際会議場(つくば)
• [Presentation] プロトン性イオン液体-硝酸エチルアンモニウム-中における酸および塩基の溶存状態 (2008)
  • Author(s): 神崎亮、宋雪旦、原祥太、梅林泰宏、石黒慎一
  • Organizer: 第31回溶液化学シンポジウム
  • Place of Presentation: 近畿大学(東大阪)
• [Presentation] Autoprotolysis in Protic Ionic Liquids of N-methylimidazolium and Carb oxylic Acids (2008)
  • Author(s): Ryo Kanzaki
  • Organizer: The 5th International and 7th China-Japan Joint Symposium on Calorimetry and Thermal Analysis (CATS 2008)
  • Place of Presentation: 大連 (中国)
• [Presentation] プロトン性イオン液体のイオン性と酸塩基性 (2008)
  • Author(s): 神崎亮
  • Organizer: 分析化学第57年会
  • Place of Presentation: 福岡大学 (福岡)
• [Presentation] HEATS OF MIXING OF CARBOXYLIC ACIDS AND N-METHYL-IMIDAZOLE (2008)
  • Author(s): Ryo Kanzaki
  • Organizer: 14th International Congress on Thermal Analysis and Calorimetry VI Brazilian Congress on Ther-mal Analysis and Calorimetry (14th ICTAC)
  • Place of Presentation: サンパウロ (ブラジル)
• [Presentation] プロトン性イオン液体-硝酸エチルアンモニウム-中における自己解離平衡の反応熱力学プロトン性イオン液体-硝酸エチルアンモニウム-中における自己解離平衡の反応熱力学 (2008)
  • Author(s): 神崎亮
  • Organizer: 第44回熱測定討論会
  • Place of Presentation: つくば国際会議場 (つくば)
• [Presentation] プロトン性イオン液体-硝酸エチルアンモニウム-中における酸および塩基の溶存状態 (2008)
  • Author(s): 神崎亮
  • Organizer: 第31回溶液化学シンポジウム
  • Place of Presentation: 近畿大学 (東大阪)
• [Presentation] プロトン性イオン液体はイオン液体か (2008)
  • Author(s): 神崎 亮
  • Organizer: 電気化学会第75回大会
  • Place of Presentation: 山梨大学(甲府)
• [Presentation] プロトン性イオン液体中における酸塩基性 (2007)
  • Author(s): 神崎亮
  • Organizer: 第6回九州溶液化学懇談会
  • Place of Presentation: 福岡大学(福岡)
  • Year and Date: 2007-01-26
• [Presentation] イオン液体(硝酸エチルアンモニウム)-水混合溶媒中における自己解離定数のモル分率依存性 (2007)
  • Author(s): 神崎亮、内田訓彰、原祥太、梅林泰宏、石黒慎一
  • Organizer: 第68回分析化学討論会
  • Place of Presentation: 宇都宮大学、宇都宮
• [Presentation] Acidity and Basicity of Ionic Liquids of Onium Salt (2007)
  • Author(s): Ryo Kanzaki, Kuniaki Uchida, Yasuhiro Umebayashi, Shin-ichi Ishiguro
  • Organizer: The 29th International Conference on Solution Chemistry (30 ICSC)
  • Place of Presentation: Murdoch University, Perth (Australia)
• [Presentation] Acid-Base Property of Protic Ionic Liquids (2007)
  • Author(s): Ryo Kanzaki, Kuniaki Uchida, Shota Hara, Yasuhiro Umebayashi, Shin-ichi Ishiguro
  • Organizer: The 2nd International Congress on Ionic Liquids (COIL-2)
  • Place of Presentation: Pacifico Yokohama, Yokohama (Japan)
• [Presentation] アンモニウム系プロトン性イオン液体の液体構造 (2007)
  • Author(s): 神崎亮、宋雪旦、原祥太、福田周平、梅林泰宏、石黒慎一
  • Organizer: 日本分析化学会第56 年会
  • Place of Presentation: 徳島大学(徳島)
• [Presentation] N-メチルイミダゾリウム-カルボン酸プロトン性イオン液体の自己解離平衡 (2007)
  • Author(s): 神崎亮、原祥太、下田達也、梅林泰宏、石黒慎一
  • Organizer: 第43回熱測定討論会
  • Place of Presentation: 札幌コンベンションセンター(札幌)
• [Presentation] Potentiometric and Calorimetric Titration in Ionic Liquids of N-Methylimidazolium Carboxylate (2007)
  • Author(s): Ryo Kanzaki, Shota Hara, Xuedan Song, Yasuhiro Umebayashi, Shin-ichi Ishiguro
  • Organizer: JMLG/EMLG Meeting 2007 and 30th SSCJ
  • Place of Presentation: Fukuoka University (Fukuoka)
• [Presentation] 分子動力学シミュレーションおよび広角X線散乱法による水素結合性イオン液体の液体構造の研究 (2007)
  • Author(s): 神崎亮、福田周平、梅林泰宏、石黒慎一
  • Organizer: 第21回分子シミュレーション討論会
  • Place of Presentation: 金沢歌劇座(金沢)
• [Presentation] プロトン性イオン液体はイオン液体か? (2007)
  • Author(s): 神崎亮、原祥太、宋雪旦、梅林泰宏、石黒慎一
  • Organizer: 電気化学会第75回大会
  • Place of Presentation: 山梨大学(甲府)
• [Presentation] イオン液体(硝酸エチルアンモニウム)-水混合溶媒中における自己解離定数のモル分率依存性 (2007)
  • Author(s): 神崎 亮
  • Organizer: 第68回分析化学討論会
  • Place of Presentation: 宇都宮大学(宇都宮)
• [Presentation] Acidity and Vasicity of Ionic Liquids of Onium Salt (2007)
  • Author(s): Ryo, Kanzaki
  • Organizer: The 30th International Conference on Solution Chemistry(30 ICSS)
  • Place of Presentation: Murdoch University(Perth, Australia)
• [Presentation] Acid-Base Property of Protic Ionic Liquids (2007)
  • Author(s): Ryo, Kanzaki
  • Organizer: The 2nd International Congress on Ionic liquids(COIL-2)
  • Place of Presentation: Pacifico Yokohama(Yokohama, Japan)
• [Presentation] アンモニウム系プロトン性イオン液体の液体構造 (2007)
  • Author(s): 神崎 亮
  • Organizer: 日本分析化学会第56年会
  • Place of Presentation: 徳島大学(徳島)
• [Presentation] N-メチルイミダゾリウム-カルボン酸プロトン性イオン液体の自己解離平衡 (2007)
  • Author(s): 神崎 亮
  • Organizer: 第43回熱測定討論会
  • Place of Presentation: 北海道大学(札幌)
• [Presentation] Potentiometric and Calorimetric Titration in Ionic Liquids of N-Methyli midazolium Carboxylate (2007)
  • Author(s): Ryo, Kanzaki
  • Organizer: Joint Conference of JMLG/EMLG Meeting 2007 and. 30th Symposium on Solution Chemistry of Japan
  • Place of Presentation: Fukuoka University(Fukuoka, Japan)