Chemical shifts of thallium resonance spectra in solutions of thallous salts
- 1 January 1959
- journal article
- research article
- Published by Taylor & Francis in Molecular Physics
- Vol. 2 (1) , 75-84
- https://doi.org/10.1080/00268975900100071
Abstract
Chemical shifts of the thallium nuclear resonance have been measured in solutions of thallous hydroxide, fluoride, acetate, formate, nitrate, and perchlorate of varying concentrations and in the presence of added substances. At low concentrations the chemical shift varies non-linearly with concentration of anion and can be correlated with the formation of ion-pairs. In stronger solutions the variation of chemical shift becomes linear, and is attributed to interactions between the ion-pairs and the added substances. On a mesuré les déplacements chimiques dans la résonance nucléaire du thallium pour des solutions d'hydroxyde, fluorure, acétate, formiate, nitrate, et perchlorate thalleux, à des concentrations variées, et en présence de substances ajoutées. Aux faibles concentrations le déplacement chimique varie de façon non-linéaire en fonction de la concentration de l'anion, et on peut le mettre en corrélation avec la formation de paires d'ions. Dans les solutions plus concentrées la variation du déplacement chimique devient linéaire et on l'attribue aux interactions entre les paires d'ions et les substances ajoutées. Chemische Verschiebungen der Kernresonanz von Thallium wurden in Lösungen von Thallohydroxyd, -fluorid, -azetat, -formiat, -nitrat und -perchlorat bei verschiedenen Konzentrationen, sowie in Anwesenheit von Fremdsubstanzen gemessen. Bei niedrigen Konzentrationen nimmt die Chemische Verschiebung nicht-linear mit der Anionenkonzentration zu und lässt sich zu der Bildung von Ionenpaaren in Beziehung setzen. In stärkeren Lösungen wird die Änderung der Chemischen Verschiebung linear und lässt sich auf Wechselwirkungen zwischen den Ionenpaaren und den zugesetzten Substanzen zurückführen.Keywords
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