Figure 4.
(a) Reversible photoisomerization of azobenzene. (b) Structural formulas of azobenzene 2 and background ligand 3. (c) Snapshots from molecular dynamics simulations of a 2/3-coated gold nanoparticle in the trans and cis states of azobenzene. (d) Structural formulas of azobenzene 4 and background ligand 5.3 (e) Proposed mechanism for accelerated azobenzene isomerization on a nanoparticle surface upon coadsorption with a hydroxy-terminated background ligand.3 (f) Crystal structure of an inclusion complex comprising cage 1 and two molecules of tetra-o-fluoroazobenzene (6) (left) and the stepwise mechanism underlying the photoisomerization of 6 within the cavity of 1 (right). (c) Adapted from ref (3). Copyright 2019 American Chemical Society.