Top-down methods, long used for the creation of materials and devices, are to be replaced by bottom-up methods, the ultimate goal of which is the establishment of unimolecular devices.[1] In exploiting these bottom-up methods, the integration of various functionalities (eg, electro-, photo-, and magnetoproperties) in a single molecule is the key to the fabrication of high-end materials and devices. Structural changes induced by photonic ...