Crystals that undergo mechanical motion in response to light are of great interest for the development of photoactuating smart materials, but their disintegration hinders the characterization of accompanying structural changes. Here, two iso-structural photoreactive metal-organic crystals are found to undergo [2 + 2] cycloaddition under UV light in a single-crystal-to-single-crystal manner, enabling detailed characterization of their photomechanical behaviours.
- Samim Khan
- Basudeb Dutta
- Mohammad Hedayetullah Mir