The rupture forces of individual host–guest complexes between surface-confined cucurbit [6] uril (CB [6]) and spermine derivatives were measured directly by atomic force microscopy (AFM). While 1, 2-dithiolane-attached spermine was immobilized on a gold-coated AFM tip, perallyloxyCB [6] was attached to an allyl-terminated self-assembled monolayer on a gold substrate by olefin metathesis reaction. A histogram and autocorrelation function analysis ...
[Jasys, V. John; Kelbaugh, Paul B.; Nason, Deane M.; Phillips, Douglas; Rosnack, Kenneth J.; Saccomano, Nicholas A.; Stroh, Justin G.; Volkmann, Robert A. Journal of the American Chemical Society, 1990 , vol. 112, # 18 p. 6696 - 6704]
