Research Project
Grant-in-Aid for Scientific Research (C)
In order to clarify the factors that improve the solubility of metal complexes in supercritical carbon dioxide (SC-CO2) with the addition of hydrogen bond-donating modifiers, the device of Raman spectroscopy using a square fused silica capillary as a spectroscopic cell was developed. The Raman spectrum of Fe(acac)3 complex was changed with the addition of modifier. In addition, the degree of the change increased as the modifier's hydrogen bond donating ability increased. From these results, it was clarified that the remarkable improvement of the solubility of the metal complex in SC-CO2 with the addition of the hydrogen bond-donating modifier is due to the formation of the metal complex-modifier association via the hydrogen bond.
角型キャピラリーを分光セルに用いる本システムは、既存のレーザー顕微分光システムに比較的安価に組み込むことが可能である．本研究で開発した装置により、吸光度からSC-CO2相に溶解している分析物の定量、ラマンスペクトルから分析物の構造情報を同時に得ることが可能になった。本装置は、超臨界二酸化炭素相中での溶質とモディファイヤー間の相互作用を検討するうえで有用な分析装置であると考えられる。
All 2021 2019 2018 2017
All Journal Article (4 results) (of which Int'l Joint Research: 1 results, Peer Reviewed: 4 results, Open Access: 1 results) Presentation (6 results) (of which Int'l Joint Research: 1 results, Invited: 1 results)
Solvent Extr. Res. Dev., Jpn.
Volume: 28
Solvent Extraction Research and Development, Japan
Volume: 24 Issue: 2 Pages: 105-111
10.15261/serdj.24.105
130005689384
J. Phys. Chem. B
Volume: 121 Issue: 19 Pages: 5025-5032
10.1021/acs.jpcb.7b03341
Proceedings of The 21th International Solvent Extraction Conference (ISEC2017)
Volume: 1 Pages: 15-19
