Abstract
Slow evaporation of a solution of 1-decynyl(phenyl)(tetrafluoroborato)-λ 3-iodane and 18-crown-6 in dichloromethane–diethyl ether–hexane gave a supramolecular 1:1 complex, while 3,3-dimethyl-1-butynyl- and phenylethynyl(phenyl)(tetrafluoroborato)-λ 3-iodanes afforded 2:1 complexes. Complexation with 18-crown-6 increased the thermal stability of the phenylethynyl-λ 3-iodane. Solid state and solution structures of these complexes were examined by single crystal X-ray analyses, 1H and 13C NMR spectra, and cold-spray ionization MS. Binding constants were measured by 1H NMR titrations.
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