Phototriggered Mechanical Movement in A Bipyridinium-based Coordination Polymer Powered by Electron Transfer

Photomechanical movement with a morphological deformation has been achieved in the crystalline state of a bipyridinium-based coordination polymer. The engine heart is the electron-deficient bipyridinium core sandwiched by electron-rich phenylcarboxylate components. The decorrelation of the CT state triggered by PET reaction in the engine heart promotes the occurrence of this mechanical movement.