Intramolecular cooperative effect of a macrocyclic receptor bearing -diketone fragments on the extraction of strontium into an ionic liquid

イオン液体へのストロンチウムの抽出における-ジケトン部位を有する大環状レセプターの分子内協同効果

Okamura, Hiroyuki; Naganawa, Hirochika; Imura, Hisanori*; Shimojo, Kojiro

The macrocyclic receptor (H $_{2}$ DA18C6) composed of diaza-18-crown-6 and two molecules of 4-acyl-5-pyrazolone was synthesized for the extraction of Sr(II) into ionic liquids (ILs). The extraction performance of H $_{2}$ DA18C6 in 1-alkyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide ([C $_{n}$ mim][Tf $_{2}$ N]) was remarkably enhanced by the intramolecular cooperative effect compared with that in chloroform. From the equilibrium analysis, the neutral complex, Sr(DA18C6), was extracted into [C $_{2}$ mim][Tf $_{2}$ N]. The shortening of the average Sr-O distance in the Sr-DA18C6 complex in the IL was revealed from the extended X-ray absorption fine structure spectroscopy. This is the cause of the intramolecular cooperative effect in the IL.

使用言語	:	English
掲載資料名	:	Proceedings of 20th International Solvent Extraction Conference (ISEC 2014)
巻	:
号	:
ページ数	:	p.1046 - 1051
発行年月	:	2014/09
発表会議名	:	20th International Solvent Extraction Conference (ISEC 2014)
開催年月	:	2014/09
開催都市	:	Wrlzburg
開催国	:	Germany
キーワード	:	福島第一原子力発電所事故; Fukushima Daiichi Nuclear Power Station Accident

特許データ	:
PDF	:

論文URL	:
研究データの公開先DOI	:
使用施設	:
広報プレスリリース	:
論文解説記事 (成果普及情報誌)	:
受委託・共同研究相手機関	:	金沢大学

Access	:	- Accesses
Web of Science® Times Cited Count	:	被引用回数：評価・統計等のため最新の被引用回数を確認したい場合は、直接Web of Science®をご確認ください。 http://www.webofknowledge.com/wos
InCites™	:
Altmetrics	:

登録番号 : BB20141065
抄録集掲載番号 : 43000298
論文投稿番号 : 15421

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.