Chloride Binding by Polyammonium Receptor Molecules : 35Cl‐NMR Studies

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)1078-1083
Journal / PublicationHelvetica Chimica Acta
Volume72
Issue number5
Publication statusPublished - 9 Aug 1989
Externally publishedYes

Abstract

Binding of chloride anion by protonated polyamines was investigated by <sup>35</sup>ClNMR spectroscopy. The presence of protonated macro(poly)cyclic polyamines caused downfield shifts and significant line broadening of the <sup>53</sup>ClNMR signals. <sup>35</sup>ClNMR spectroscopy was used for complex‐formation stoichiometry determination and revealed the formation of a binuclear chloride complex with the fully protonated ditopic hexaazamacrocyclic receptor 6. <sup>35</sup>ClNMR spectroscopy was also applied in competition experiments between Cl and SO<sub>4</sub><sup>2−</sup> and demonstrated that the fully protonated macrocyclic hexaamine 4 forms a strong complex with SO<sub>4</sub><sup>−2</sup> with 1:1 stoichiometry. Copyright © 1989 Verlag GmbH & Co. KGaA, Weinheim

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Citation Format(s)

Chloride Binding by Polyammonium Receptor Molecules: 35Cl‐NMR Studies. / Hosseini, Mir Wais; Kintzinger, Jean‐Pierre; Lehn, Jean‐Marie et al.
In: Helvetica Chimica Acta, Vol. 72, No. 5, 09.08.1989, p. 1078-1083.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review