Inclusion of Acetonitrile in a Macrobicyclic Host Molecule
The first inclusion complex of acetonitrile in a molecular cavity is described; X-ray structure and IR spectra show that the ?-donor host 4 encloses acetonitrile as a ?-acceptor selectively inside its molecular cavity, whereas empty intermolecular cavities are not occupied by acetonitrile.
Up to fourfold-bridged macrocyclic compounds bearing triphenylmethane units which form a large molecular cavity were prepared for the first time.The macrobicyclus 4 crystallizes from acetonitrile as 1:1 adduct and from phenylacetonitrile as 1:3 adduct with the respective solvent.The X-ray structures of these complexes are compared with the related 1:5 adduct of 13 with benzene. Key Words: Host-Guest chemistry / Inclusion compounds / Macropolycyclic compounds / Heterocyclic compounds / Supramolecular chemistry
Berscheid, Ralf,Nieger, Martin,Voegtle, Fritz
p. 1687 - 1696
(2007/10/02)
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