Université de Fribourg

Photochemical, photophysical and redox properties of novel fulgimide derivatives with attached 2,2′-bipyridine (bpy) and [M(bpy)₃]²⁺ (M = Ru and Os) moieties

Jukes, Ron T. F. ; Kühni, Joël ; Salluce, Nunzio ; Belser, Peter ; Cola, Luisa De ; Hartl, František

In: Dalton Transactions, 2009, p. 3993-4002

Fulgimides monosubstituted with [M(bpy)₃]²⁺ (M = Ru, Os; bpy = 2,2′-bipyridine) chromophore units and with a single bpy group were synthesized and investigated as components of conceivable dinuclear photochromic switches of luminescence. The E-, Z- and closed-ring (C) photoisomer forms of the bpy-bound fulgimide were successfully separated by semi-preparative HPLC. The same...

Université de Fribourg

Photochromic switches incorporated in bridging ligands: a new tool to modulate energy-transfer

Belser, Peter ; Cola, Luisa De ; Hartl, F. ; Adamo, Vincenzo ; Bozic, Biljana ; Chriqui, Yoel ; Iyer, Vijay Mahadevan ; Jukes, R. T. F. ; Kühni, Joel ; Querol, Manel ; Roma, Silvia ; Salluce, Nunzio

In: Advanced Functional Materials, 2006, vol. 16, no. 2, p. 195-208

The thoughful construction of molecular switches has led to a gamut of supramolecular systems that can be used in molecular electronics. These include molecules based on thienylethenes, spiropyrans, fulgides, dithienylphenanthrolines, and diazafluorenes. This article reviews the recent developments made in the synthesis and characterization of all these systems, thereby allowing a comparative...