NMR Study for Self-aggregation of 1-Butyl-3-methylimidazolium Bromide in Aqueous Solution

• TSUCHIYA Hiroyuki

  Graduate School of Chemistry, Meisei University

• IMANARI Mamoru

  Graduate School of Advanced Integration Science, Chiba University

• ISHIHARA Shinji

  Graduate School of Advanced Integration Science, Chiba University

• NAKAKOSHI Masamichi

  Chemical Analysis Center, Yokohama National University

• NISHIKAWA Keiko

  Graduate School of Advanced Integration Science, Chiba University

• SEKI Hiroko

  Chemical Analysis Center, Chiba University

• TASHIRO Mitsuru

  Graduate School of Chemistry, Meisei University

抄録

Self-aggregation of 1-butyl-3-methylimidazolium bromide ([bmim]Br) in D₂O has been investigated using NMR spectroscopy. The ¹H spin-lattice relaxation times (T₁) of the [bmim]⁺ increased with the decrease of concentration in the range of 0.1 - 3.0 mol dm^-3 as expected, however, in contrast, the ¹H-T₁ decreased below 0.1 mol dm^-3. The estimated ¹³C-activation energies indicated that the rotational mobility of the butyl-chain was more restricted than that of the imidazole ring at 0.1 mol dm^-3, whereas such a significant difference was not observed at 3.0 mol dm^-3. These results suggest that [bmim]⁺ forms micelle-like aggregations below 0.1 mol dm^-3 in D₂O.

収録刊行物

• Analytical Sciences

  Analytical Sciences 24 (10), 1369-1371, 2008

  社団法人 日本分析化学会

キーワード

• Analytical Chemistry

詳細情報

• CRID: 1390282679234279296
• NII論文ID: 10025207720
• NII書誌ID: AA10500785
• DOI: 10.2116/analsci.24.1369
• ISSN: 13482246
• ISSN: 09106340
• NDL書誌ID: 9667518
• Web Site: http://id.ndl.go.jp/bib/9667518
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9667518
• Web Site: https://link.springer.com/content/pdf/10.2116/analsci.24.1369.pdf
• Web Site: https://link.springer.com/article/10.2116/analsci.24.1369/fulltext.html
• Web Site: http://www.jstage.jst.go.jp/article/analsci/24/10/24_10_1369/_pdf
• 本文言語コード: en
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