Multinuclear NMR Study of Aqueous Lanthanide-TTHA Complexes

Chem. J. Chinese Universities ›› 1992, Vol. 13 ›› Issue (1): 81.

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Multinuclear NMR Study of Aqueous Lanthanide-TTHA Complexes

HUA Shi-ying, SONG Rui-fang, HUANG Gui-qing

Institute of Theoretical Chemistry, Jilin University, Changchun, 130023

Received:1990-09-27 Online:1992-01-24 Published:1992-01-24

Abstract

Abstract: The shift reagent properties of eleven Ln(TTHA)^3- complexes were studied on the basis of measuring the chemical shifts of ²³Na, ²H, ¹⁷O, ³⁵Cl induced by these complexes.The results indicate that the axially symmetric Ln(TTHA)^3- complexes are better aqueous shift reagents, especially the shifts of ²³Na are consistent with theoretical dipolar shifts, indicating that the Ln(TTHA)^3- complexes are the best one for positively charged substrates.

Key words: Lanthanide ions, TTHA, Shift reagent, NMR

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HUA Shi-ying, SONG Rui-fang, HUANG Gui-qing . Multinuclear NMR Study of Aqueous Lanthanide-TTHA Complexes[J]. Chem. J. Chinese Universities, 1992, 13(1): 81.

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Multinuclear NMR Study of Aqueous Lanthanide-TTHA Complexes

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