Gating the photochromism of an azobenzene by strong host-guest interactions in a divalent pseudorotaxane
M. Lohse, K. Nowosinski, N.L. Traulsen, A.J. Achazi, L.K.S. von Krbek, B. Paulus, C.A. Schalley, S. Hecht – 2015
The ability of an E-configured azobenzene guest to undergo photoisomerisation is controlled by the presence of a complementary host. Addition of base/acid allowed for a weakening/strengthening of the interactions in the divalent pseudorotaxane complex and hence could switch on/off photochromic activity.