Heterogeneous reactions of biogenic terpenes at the gas-liquid interface

• Project/Area Number: 23810013
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Environmental dynamic analysis
• Research Institution: Kyoto University
• Principal Investigator: ENAMI Shinichi 京都大学, 白眉センター, 准教授 (00589385)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000); Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
• Keywords: 大気化学 / エアロゾル / 気候変動 / 植物 / 揮発性物質 / 界面反応 / オゾン / 温暖化 / 森林 / テルペン / 環境化学 / 界面 / 質量分析法

Research Abstract

Unraveling the complex interactions between the atmosphere and the biosphere is critical for predicting climate changes. The large amounts of biogenic volatile organic compounds (BVOCs) emitted by plants must play important roles in this regard. Here, we applied online electrospray mass spectrometry to monitor aqueous microjets exposed to gaseous terpenes and found that these BVOCs are readily protonated and undergo oligomerization upon colliding with the surface of pH < 4 microjets. Present results provide a universal mechanism for the dry deposition of unsaturated BVOCs.

Research Products

• [Journal Article] Enhancement of Gaseous Emission by Aqueous Ferrous Ions During the Heterogeneous Reaction of Gaseous Ozone with Aqueous Iodide (2013)
  • Author(s): Yosuke Sakamoto, Shinichi Enami, Kenichi Tonokura
  • Journal Title: The journal of Physical Chemistry A Volume: (未定) Issue: 14 Pages: 2980-2986
  • DOI: 10.1021/jp308407j
  • Peer Reviewed
• [Journal Article] Protonation and oligomerization of isoprene on weakly acidic water - Implications for atmospheric chemistry (2012)
  • Author(s): S. Enami, H. Mishra, M. R. Hoffmann, A. J. Colussi
  • Journal Title: J. Phys. Chem. A Volume: 116 Pages: 6027-6032
  • Peer Reviewed
• [Journal Article] Dry deposition of biogenic terpenes viacationic oligomerization on environmental aqueous surfaces (2012)
  • Author(s): S. Enami, M. R. Hoffmann, A. J. Colussi
  • Journal Title: J. Phys. Chem. Lett Volume: 3 Pages: 3102-3108
  • Peer Reviewed
• [Journal Article] Dry deposition of biogenic terpenes via cationic oligomerization on environmental aqueous surfaces (2012)
  • Author(s): Enami
  • Journal Title: J. Phys. Chem. Lett. Volume: 3 Issue: 21 Pages: 3102-3108
  • DOI: 10.1021/jz301294q
  • Peer Reviewed
• [Journal Article] Bronsted basicity of the air-water interface (2012)
  • Author(s): Mishra
  • Journal Title: Proc. Natl. Acad. Sci. U.S.A. Volume: 109 Issue: 46 Pages: 18679-18683
  • DOI: 10.1073/pnas.1209307109
  • Peer Reviewed
• [Journal Article] Anions dramatically enhance proton transfer through aqueous interfaces (2012)
  • Author(s): Mishra
  • Journal Title: Proc. Natl. Acad. Sci. U.S.A. Volume: 109 Issue: 26 Pages: 10228-10232
  • DOI: 10.1073/pnas.1200949109
  • Peer Reviewed
• [Journal Article] Protonation and oligomerization of isoprene on weakly acidic water-Atmospheric implications (2012)
  • Author(s): Enami, Mishra, Hoffmann, Colussi
  • Journal Title: J.Phys.Chem.A Volume: (in press) Issue: 24 Pages: 6027-6032
  • DOI: 10.1021/jp2110133
  • Peer Reviewed
• [Journal Article] Hofmeister effects in micromolar electrolyte solutions (2012)
  • Author(s): Enami, Mishra, Hoffmann, Colussi
  • Journal Title: J.Chem.Phys Volume: (in press)
  • Peer Reviewed
• [Journal Article] Weak acids enhance halogen activation on atmospheric water's surface (2011)
  • Author(s): S.Hayase, A.Yabushita, M.Kawasaki, S.Enami, M.R.Hoffmann, A.J.Colussi
  • Journal Title: J.Phys.Chem.A Volume: 115 Issue: 19 Pages: 4935-4940
  • DOI: 10.1021/jp2021775
  • Peer Reviewed
• [Presentation] テルペン類の未知のシンク:酸性表面への乾性沈着メカニズムの実験的解明 (2012)
  • Author(s): S.Enami
  • Organizer: 第18回大気化学討論会
  • Place of Presentation: 福岡
• [Presentation] Proton transfer reaction at the air-water interface (2012)
  • Author(s): Enami
  • Organizer: Workshop on Interstellar Matter 2012
  • Place of Presentation: 札幌、北海道大学
• [Presentation] Direct observation of Hofmeister effects in micromolar electrolyte solutions (2012)
  • Author(s): Enami
  • Organizer: 28th Symposium on Chemical Kinetics and Dynamics
  • Place of Presentation: 福岡、九州大学
• [Presentation] テルペン類の未知のシンク：酸性表面への乾性沈着メカニズムの実験的解明 (2012)
  • Author(s): Enami
  • Organizer: The 18th Symposium on Atmospheric Chemistry
  • Place of Presentation: 福岡、 ホテルパーレーンス小野屋
• [Presentation] 水の界面の酸性度の実験的解明 (2012)
  • Author(s): Enami
  • Organizer: 第６回分子科学討論会
  • Place of Presentation: 東京、東京大学
• [Presentation] イソプレンの乾性沈着と気液界面におけるオリゴマー化現象の実験的解明 (2011)
  • Author(s): S.Enami, H. Mishra, M. R. Hoffmann, A. J. Colussi
  • Organizer: 第17回大気化学討論会
  • Place of Presentation: 宇治
• [Presentation] Iodide-catalyzed ozonation of terpenes on aqueous surfaces (2011)
  • Author(s): S.Enami, S.Hayase, M.Kawasaki, M.R.Hoffmann, A.J.Colussi
  • Organizer: 2011 American Geophysical Union Fall Meeting, San Francisco
  • Place of Presentation: San Francisco (USA)
• [Presentation] Organic acids enhance halogen activation on mildly acidic water surfaces (2011)
  • Author(s): S.Enami, S.Hayase, A.Yabushita, M.Kawasaki, M.R.Hoffmann, A.J.Colussi
  • Organizer: 2011 American Geophysical Union Fall Meeting, San Francisco
  • Place of Presentation: San Francisco (USA)
• [Presentation] In-situ measurement of interfacial photoreaction in atmosphere and living system (2011)
  • Author(s): S.Enami
  • Organizer: Academia Sinica & JST joint workshop : Innovative use of light and nano/bio materials
  • Place of Presentation: Taipei (Taiwan)
• [Remarks]
  • URL: http://kyouindb.iimc.kyoto-u.ac.jp/j/eZ7dJ
• [Remarks]
  • URL: http://www.hakubi.kyoto-u.ac.jp/02_mem/h23/enami.html
• [Remarks]
  • URL: http://www.raisha.jst.go.jp/resercher/03/r03enami.html