A Size‐Flexible Organometallic Box for the Encapsulation of Fullerenes

A palladium‐cornered molecular square with four pyrene‐bis(imidazolylidene) bridging ligands is reported. This metallo‐polygon can encapsulate C60 and C70. The X‐ray diffraction structures of the empty cage as well as the cages complexed with both fullerenes are described. The fullerene encapsulatio...

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Bibliographic Details
Published in:Angewandte Chemie 2019-04, Vol.131 (17), p.5738-5742
Main Authors: Martínez‐Agramunt, Victor, Eder, Tobias, Darmandeh, Heidar, Guisado‐Barrios, Gregorio, Peris, Eduardo
Format: Article
Language:English
Subjects:
Buckminsterfullerene
Cages
Chemistry
Encapsulation
Fulleren
Fullerenes
Metallography
N-Heterocyclische Carbene
Palladium
Pyrene
Selbstorganisation
Wirt-Gast-Systeme
X-ray diffraction
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Summary:A palladium‐cornered molecular square with four pyrene‐bis(imidazolylidene) bridging ligands is reported. This metallo‐polygon can encapsulate C60 and C70. The X‐ray diffraction structures of the empty cage as well as the cages complexed with both fullerenes are described. The fullerene encapsulation produces perturbations in the structural parameters of the metallo‐square, showing that it can adjust the shape of its cavity to the size of each fullerene. Eine Box mit Palladiumecken und vier Pyrenbis(imidazolyliden)‐Brückenliganden verkapselt C60‐ und C70‐Fullerene. Diese Verkapselung beeinflusst die Strukturparameter des Metallo‐Quadrats, das die Form seines Hohlraums an die Größe des Fulleren‐Gastes anpassen kann.
ISSN:0044-8249
1521-3757
DOI:10.1002/ange.201901586