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Caro-Cryptands: Tris-carotenoid macrobicyclic ligands–synthesis, crystal structure, and dinuclear copper(I) complexes

✍ Scribed by Jean-Marie Lehn; Jean-Pierre Vigneron; Itka Bkouche-Waksman; Jean Guilhem; Claudine Pascard

Publisher: John Wiley and Sons
Year: 1992
Tongue: German
Weight: 482 KB
Volume: 75
Category: Article
ISSN: 0018-019X
DOI: 10.1002/hlca.19920750410

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✦ Synopsis

The tris-carotenoid macrobicycles 1 and 2 were obtained in good yields in a one-step macrobicyclisation condensation between the tripode N(CH,CH2NH2), and the polyolefinic dialdehydes 5 and 6. They form dinuclear cryptates by complexation of two Cu' ions. The crystal structure of the tris-carotenoid compound 2 confirms that it contains three parallel polyolefinic strands. These substances may formally be considered as prototypes of molecular 'cables' formed by three electron-conducting molecular wires.

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