The self-assembly of a highly ordered [2]catenane
The self-assembly of a highly ordered [2]catenane, (P. R. Ashton, C. L. Brown, E. J. T. Chrystal, T. Goodnow, A. E. Kaifer, K. P. Parry, D. Philp, A. M. Z. Slawin, N. Spencer, J. F. Stoddart, and D. J. Williams), J. Chem. Soc., Chem. Commun. 1991, 9, 634-639.