## Abstract In solvents such as chloroform or benzene, tetraurea calix[4]arenes **1** form dimeric capsules in which one solvent molecule is usually included as guest. To explore the structural requirements for the formation of such hydrogenβbonded dimers we replaced one __p__βtolylurea residue by
Metal-controlled aggregation-deaggregation in calix[4]arene-based self-assemblies
β Scribed by Pavel Lhotak; Seiji Shinkai
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- French
- Weight
- 190 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
A self-assembled fullerene receptor based on calix[5]arene has been developed. Silver cation complexation held together the two calix[5]arenes with bipyridine units providing a large enough cavity to take up C 60 or C 70 . The formation of the supramolecular complex with C 60 or C 70 was established
Calix[4]arene derivatives with one adenine or thymine sidearm have been synthesized and their self-association characteristics which depend on solvent, temperature and concentrations are described. Mainly Watson-Crick A-T base pairing in these systems was detected using 1 H NMR and ESI-MS.