pH-Controlled assembly and disassembly of a cryptand/paraquat [2]pseudorotaxane.
Strong complexation between a pyridine-containing cryptand and paraquat can be reversibly switched off (and back on) by adding acid (and then base).
Huang
Feihe
F
Department of Chemistry, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0212, USA.
Switek
Karen A
KA
Gibson
Harry W
HW