Structure and Electronic State of Metal Complexes in Ionic Liquids Observed by Soft X-ray Spectroscopy
| Project/Area Number |
26410018
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Physical chemistry
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| Research Institution | Saga University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
TOKUSHIMA Takashi 理化学研究所, 放射光科学研究センター, 技師 (10415242)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | イミダゾリウム系イオン液体 / 分子性液体 / 遷移金属イオン / 錯形成平衡 / 水素結合 / 軟X線吸収分光法 / 軟X線発光分光法 / 電子構造 / 静電的相互作用 / 密度凡関数法 / 電子供与性 / 錯形成安定度定数 / エンタルピー / エントロピー / 酸化還元電位 / 配位子置換反応 / 平衡定数 / SPring-8 / X線吸収スペクトル / X線発光スペクトル |
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| Outline of Final Research Achievements |
The complex formation of Ni(II) with dimethyl sulfoxide (DMSO), methanol (MeOH), and acetonitrile (AN) was observed in ionic liquids. Moreover, the interactions between ionic liquids and molecular liquids were clarified using IR, Raman, and NMR techniques. To elucidate the changes in the electronic structures of ionic liquids by complex formation, soft X-ray absorption and emission (XAS and XES) spectroscopic experiments were performed on the N K-edge of ionic liquids. The stability constants of the Ni(II) complex were higher in the order of DMSO >> AN > MeOH. Thus, the hydrogen bonding between the imidazolium ring and molecular liquids may not markedly affect the complex formation. The electronic structure of the N atoms within ionic liquid may not be strongly influenced by the interaction between the cation and anion of ionic liquids. It is shown that the interaction between both ions is very weak.
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Report
(4 results)
Research Products
(70 results)
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[Journal Article] Solvent-Dependent Properties and Higher-Order Structures of Aryl Alcohol + Surfactant Molecular Gels2016
Author(s)
S. Katsube, M. Kinoshita, K. Amano, T. Sato, Y. Katsumoto, T. Umecky, T. Takamuku, T. Kaji, M. Hiramoto, Y. Tsurunaga, K. Nishiyama
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Journal Title
Langmuir
Volume: 32
Issue: 17
Pages: 4352-4360
DOI
Related Report
Peer Reviewed
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[Journal Article] Intermolecular Interactions in Mixtures of 1-n-Butyl-3-methylimidazolium Acetate and Water: Insights from IR, Raman, NMR Spectroscopy and Quantum Chemistry Calculations2015
Author(s)
B. A. Marekha, M. Briam, M. Moreau, I. de Waelev, F.-A. Miannay, Y. Smortsova, T. Takamuku, O. N. Kalugin, M. Kiselev, A. Idrissi
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Journal Title
J. Mol. Liquids
Volume: 210
Pages: 227-237
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Role of Water in Complexation of 1,4,7,10,13,16-hexaoxacyclooctadecane (18-crown-6) with Li+ and K+ in 1-ethyl-3-methylimidazolium Bis(trifluoromethanesulfonyl)amide Ionic Liquid2014
Author(s)
T. Umecky, T. Takamuku, R. Kanzaki, M. Takagi, E. Kawai, T. Matsumoto, T. Funazukuri
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Journal Title
Journal of Inclusion Phenomena and Macrocyclic Chemistry
Volume: 80
Issue: 3-4
Pages: 401-407
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Presentation] High Energy X-ray Scattering Studies on Liquid Structure of pseudo-Protic Ionic Liquid N-methylimidazole and Actic Acid Equimolar Mixture with the Aids of MD Simulations2015
Author(s)
H. Doi, H. Watanabe, T. Sonnleitner, A. Nazet, S. Saito, K. Fujii, T. Umecky, T. Takamuku, Y. Kameda, R. Buchner, Y. Umebayashi,
Organizer
EMLG/JMLG Annual Meeting 2015
Place of Presentation
Rostock, Germany
Year and Date
2015-09-06
Related Report
Int'l Joint Research
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[Presentation] Possible Proton Conduction Mechanism in N-Methylimidazole and Acetic Acid Equimolar Mixture; the pseudo-Protic Ionic Liquid2015
Author(s)
H. Doi, H. Watanabe, T. Sonneleitner, S. Saito, K. Fujii, T. Umecky, T. Takamuku, Y. Kameda, R. Buchner, Y. Umebayashi
Organizer
34th International Conference on Solution Chemistry
Place of Presentation
Prague, Czech Republic
Year and Date
2015-08-30
Related Report
Int'l Joint Research
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