Magnetic relaxation of<sup>23</sup>Na and<sup>81</sup>Br in aqueous solutions of the alkali halides

Hall, Christopher J. J.; Richards, R. E.; Schulz, G.; Sharp, Robert R.

doi:10.1080/00268976900100601

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1971

1979

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Cited by 19 publications

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“…(16) V. Gutmann, "Coordination Chemistry in Nonaqueous Solutions," Springer-Verlag, Vienna, 1968. ethyl acetate, (5) THF, (6) DMF, (7) DMSO, (8) pyridine, (9) hexamethylphosphoramide, (10) water. that the chemical shifts for the two salts are not identical.…”

Section: Resultsmentioning

confidence: 99%

Spectroscopic studies of ionic solvation. X. Study of the solvation of sodium ions in nonaqueous solvents by sodium-23 nuclear magnetic resonance

Erlich¹,

Popov²

1971

J. Am. Chem. Soc.

188

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Section: Resultsmentioning

confidence: 99%

Spectroscopic studies of ionic solvation. X. Study of the solvation of sodium ions in nonaqueous solvents by sodium-23 nuclear magnetic resonance

Erlich¹,

Popov²

1971

J. Am. Chem. Soc.

188

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Self‐Diffusion of Spherical Ions and of Water in Aqueous solutions

Weiß

Nothnagel

1971

Ber Bunsenges Phys Chem

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By NMR‐Spin‐echo technique the self‐diffusion coefficients in aqueous solutions of a number of ions and of water have been measured. Measurements have been performed as a function of the concentration of the dissolved salt and of the temperature. Water (H2O) and heavy water (D2O) have been used as solvents. Only in the case of H2O, however, the self‐diffusion of the solvent has been measured. The following liquid systems have been studied in detail: LiClH2O (D, DH2O); Li2SiF6H2O (D, D, DH2O; [(CH3)4X]2YF6D2O with X  N, P, As, Sb, and Y  Si, Ge (D(CH3)4X+, DYF6−). At various concentrations the self‐diffusion coefficients of the ions and of the water as a function of the temperature may be described by an Arrhenius law. At constant concentration in some cases two different activation energies (frequency factors resp.) occur, one for an upper, the other for a lower temperature range. The result of the measurements are discussed and partially compared with theoretical calculations.

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