Electrochemical and spectroscopic studies of europium(II/III) species in a hydrophobic room-temperature ionic liquid

Naoki Tachikawa, Yasushi Katayama, Takashi Miura

研究成果: Article査読

7 被引用数 (Scopus)

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-l-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (BMPTFSA). The diffusion coefficients of Eu(II) and Eu(III) estimated by chronoamperometry were (3.9 ± 0.4) x 10-8 and (4.2 ± 0.7) x 10-8cm2 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 CH 3OH 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.

本文言語English
ページ(範囲)642-644
ページ数3
ジャーナルElectrochemistry
77
8
DOI
出版ステータスPublished - 2009 8月

ASJC Scopus subject areas

  • 電気化学

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