Skip to Main content Skip to Navigation
Journal articles

Experimental and Theoretical Investigation of Isotope Fractionation of Zinc between Aqua, Chloro, and Macrocyclic Complexes

Abstract : This work reports on the chemical isotope fractionation of Zn(II) by a solvent extraction method with the crown ether dicyclohexano-18-crown-6. The (m)Zn/(64)Zn ratios (m = 66, 67, and 68) were analyzed by multiple-collector inductively coupled plasma mass spectrometry. The relative deviations of the (66)Zn/(64)Zn ratios relative to the unprocessed material (delta(66)Zn) was determined to be -0.51 to -0.32 in the acidity region 1.0-6.0 mol dm(-3) (M) HCl. The acidity dependence or delta(m)Zn was explained by the isotope exchange reactions between Zn(II) species (Zn(2+), ZnCl(+), ZnCl(2), ZnCl(3)(-), and ZnCl(4)(2-)) and the mole fractions of them. The magnitude of delta(m)Zn due to the related Zn(II) species estimated by quantum chemical calculations was in agreement with delta(m)Zn experimentally obtained. Contribution of nuclear field shift to the isotope fractionation was estimated to be less than 10% of delta(m)Zn by quantum chemical calculations.
Document type :
Journal articles
Complete list of metadatas

https://hal-insu.archives-ouvertes.fr/insu-00681729
Contributor : Margaret Lartaud <>
Submitted on : Thursday, March 22, 2012 - 11:16:46 AM
Last modification on : Tuesday, February 18, 2020 - 3:42:02 PM

Identifiers

Collections

Citation

Toshiyuki Fujii, Frédéric Moynier, Philippe Telouk, M. Abe. Experimental and Theoretical Investigation of Isotope Fractionation of Zinc between Aqua, Chloro, and Macrocyclic Complexes. The Journal of physical chemistry, American Chemical Society (ACS), 2010, 114 (7), pp.2543-2552. ⟨10.1021/jp908642f⟩. ⟨insu-00681729⟩

Share

Metrics

Record views

175