Electrochemical and Spectroscopic Studies of Europium(II/III) Species in a Hydrophobic Room-Temperature Ionic Liquid

• TACHIKAWA Naoki

  Department of Applied Chemistry, Faculty of Science and Technology, Keio University

• KATAYAMA Yasushi

  Department of Applied Chemistry, Faculty of Science and Technology, Keio University

• MIURA Takashi

  Department of Applied Chemistry, Faculty of Science and Technology, Keio University

抄録

The electrochemical and spectroscopic properties of divalent and trivalent europium species have been investigated in a hydrophobic room-temperature ionic liquid, 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (BMPTFSA). The diffusion coefficients of Eu(II) and Eu(III) estimated by chronoamperometry were (3.9±0.4)×10⁻⁸ and (4.2±0.7)×10⁻⁸ cm² s⁻¹, respectively. The diffusion of Eu(II) is affected by the coordination between Eu(II) and TFSA⁻. The TFSA⁻ ligand seems to act as a weaker ligand than CH₃OH according to the splitting of the 5d levels observed from the absorption spectrum for Eu(II). The emission spectra of Eu(II) and Eu(III) were also obtained in BMPTFSA.

収録刊行物

• Electrochemistry

  Electrochemistry 77 (8), 642-644, 2009

  公益社団法人　電気化学会

キーワード

• Ionic Liquid
• Europium
• Emission
• Mass Transfer

詳細情報

• CRID: 1390001206497532160
• NII論文ID: 130002150621
• DOI: 10.5796/electrochemistry.77.642
• COI: 1:CAS:528:DC%2BD1MXhtVShsr%2FL
• ISSN: 21862451
• ISSN: 13443542
• Web Site: https://www.jstage.jst.go.jp/article/electrochemistry/77/8/77_8_642/_pdf
• 本文言語コード: en
• データソース種別:
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  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用可