Studies on solute-solvent interactions in gaseous and supercritical carbon dioxide by high-pressure (super1)H NMR spectroscopy

Article Abstract:

(Super1)H chemical shifts of nonpolar and polar solute molecules were measured in gaseous and supercritical CO2.

Nuclear magnetic resonance spectroscopy

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Solution structures of 1-butyl-3-methylimidazolium hexafluorophosphate ionic liquid saturated with CO2: Experimental evidence of specific anion-CO2 interaction

Article Abstract:

High pressures with a newly developed polymer cell is used in X-ray diffraction measurements for 1-butyl-3-methylimidazolium hexaflurophosphate ionic liquid ([BMIM]-[PF6])-CO2 systems. It is concluded that CO2 molecules are preferentially solvated to the [PF6](super -) anion.

Industrial Gas Manufacturing, Industrial gases, Carbon Dioxide, Analysis, X-rays, X-ray diffraction, Spectra, Structure

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Raman spectral studies of aqueous zinc nitrate solution at high temperatures and at a high pressure of 30 MPa

Article Abstract:

The measurement of the dynamic behavior of ions in an aqueous zinc nitrate solution of Zn2+ was performed using a developed high-temperature and high-pressure Raman spectroscopic system. The Raman technique led to the observation of the rotation around the axes perpendicular to the C3 axis called the perpendicular rotation. A direct calculation of the rotational relaxation exhibited by the N-O symmetric mode in the solution was performed at high temperatures of up to 340 degrees Centigrade and at a high pressure of 30 MPa.

Ions, Nitrates, Raman spectroscopy, Solution (Chemistry), Solutions (Chemistry), Zinc compounds

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