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Heptakis-6-(5-methylene-thioureido-5′-methyl-2,2′-bipyridyl)-β-cyclodextrin: synthesis and metal complexation study

✍ Scribed by Romain Heck; Alain Marsura

Publisher
Elsevier Science
Year
2003
Tongue
French
Weight
210 KB
Volume
44
Category
Article
ISSN
0040-4039

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✦ Synopsis

A new heptapode heptakis-6-(5-methylene-thioureido-5%-methyl-2,2%-bipyridyl)-b-cyclodextrin was prepared and its complexation properties towards metal cations were investigated. Substituting the urea functions by the corresponding thioureas promoted the inversion of the metal coordination selectivity. Preliminary results showed the heptapode unable to complex lanthanides but authorise selective complexation of 'soft' and 'borderline' metal cations.

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