Encapsulated guest molecules in the dimer of octahydroxypyridine[4]arene.
Recently a new type of calix[4]arenes has been synthesized via condensation of 2,6-dihydroxypyridine and a number of aldehydes. This type of pyridine[4]arenes forms capsules consisting of two single pyridine[4]arenes. These capsules can incorporate different guest molecules, like carboxylic acids and amides in this case. We proved that the guest acids really are incorporated inside the cavity of the capsules by electrospray mass spectrometry, NMR spectroscopy, and theoretical calculations.
Letzel
Matthias C
MC
Fakultät für Chemie, Universität Bielefeld, Postfach 100131, 33501 Bielefeld, Germany.
Decker
Björn
B
Rozhenko
Alexander B
AB
Schoeller
Wolfgang W
WW
Mattay
Jochen
J