V. Balzani et al., Artificial molecular-level machines. Dethreading-rethreading of a pseudorotaxane powered exclusively by light energy, CHEM COMMUN, (18), 2001, pp. 1860-1861
The reversible light-driven dethreading-rethreading of a pseudorotaxane is
obtained in solution by exploiting the (E)-(Z) photoisomerisation of azoben
zene, and monitored through fluorescence signals.