- A triptycene-based bis(crown ether) host: complexation with both paraquat derivatives and dibenzylammonium salts.
A triptycene-based bis(crown ether) host: complexation with both paraquat derivatives and dibenzylammonium salts.
Organic letters (2006-03-10)
Tao Han, Chuan-Feng Chen
PMID16524270
ABSTRACT
[reaction: see text] A novel triptycene-based bis(crown ether) host (1) incorporating two dibenzo-24-crown-8 ether moieties has been synthesized. It can form not only a new bis[2]pseudorotaxane with dibenzylammonium salts but also stable clip-shaped complexes with paraquat derivatives. Moreover, the complexation process between 1 and the two classes of guests can be chemically controlled.
MATERIALS