13C NMR Spectroscopic Evaluation of the Affinity of Carbonyl Compounds for Carbon Dioxide under Supercritical Conditions

Authors

  • Takehiko Tsukahara Dr.,

    1. Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro-ku, Tokyo 152-8550, Japan, Fax: (+81) 3-5734-3061
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  • Yoshihito Kayaki Dr.,

    1. Graduate School of Science and Engineering and Frontier Collaborative Research Center, Tokyo Institute of Technology and PRESTO, Japan Science and Technology Agency, 2-12-1 O-Okayama, Meguro-ku, Tokyo 152-8552, Japan, Fax: (+81) 3-5734-2637
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  • Takao Ikariya Prof.,

    1. Graduate School of Science and Engineering and Frontier Collaborative Research Center, Tokyo Institute of Technology and PRESTO, Japan Science and Technology Agency, 2-12-1 O-Okayama, Meguro-ku, Tokyo 152-8552, Japan, Fax: (+81) 3-5734-2637
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  • Yasuhisa Ikeda Prof.

    1. Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro-ku, Tokyo 152-8550, Japan, Fax: (+81) 3-5734-3061
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  • This work was financially supported by a Grant-in-Aid from the Ministry of Education, Science, Sports, and Culture of Japan (No. 14078209, Reaction Control of Dynamic Complexes). This work was partly supported by the 21st Century COE program.

Abstract

original image

CO2-Philie: Die 13C-NMR-chemische Verschiebung δC von überkritischem CO2, das eine Carbonylverbindung enthält, wandert mit zunehmender CO2-Dichte und parallel zum δC-Wert von reinem scCO2 zu niedrigerem Feld. Der Verschiebungsunterschied ΔδC wird als Maß für die Stärke der Solut-CO2-Wechselwirkungen (siehe Bild, R=CH3 oder CF3, L=DMSO) gesehen und ermöglicht die Bestimmung der CO2-Philie von in scCO2 gelösten Molekülen.

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