Selective self-assembly and acid-base controlled de-/rethreading of pseudorotaxanes constructed using multiple recognition motifs

Peter R. Ashton, Roberto Ballardini, Vincenzo Balzani, Matthew C T Fyfe, M. Teresa Gandolfi, M. Victoria Martínez-Díaz, Marco Morosini, Cesare Schiavo, Kazusato Shibata, J. Fraser Stoddart^*, Andrew J P White, David J. Williams