Photophysical and photochemical properties of three-dimensional metal-tris-oxalate network structures
|Published in||Molecular Crystals and Liquid Crystals. 1996, vol. 286, no. 22, p. 225|
|Abstract||Chemical variation and combination of metal ions of different valencies in the oxalate backbone as well as in the tris-bpy cation of the three-dimensional network structures of the type [MII2(ox)3][MII(bpy)3] (bpy = 2,2'-bipyridine, ox = C2O42-), [MIMIII(ox)3][MII(bpy)3] and [MIMIII(ox)3][MIII(bpy)3]ClO4 offer unique opportunities for studying a large variety of photophysical processes. Depending upon the relative energies of the excited states of the chromophores, excitation energy transfer either from the tris-bipyridine cation to the oxalate backbone or vice versa is observed, as for instance from [Ru(bpy)3]2+ as photo-sensitiser to [Cr(ox)3]3- as energy acceptor in the combination [NaCr(ox)3][Ru(bpy)3], or from [Cr(ox)3]3- to [Cr(bpy)3]3+ in [NaCr(ox)3][Cr(bpy)3]ClO4. In addition efficient energy migration within the oxalate backbone is observed. Furthermore, depending upon the excited state redox potentials, light-induced electron transfer processes may be envisaged.|
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|Research group||Groupe Hauser|
|HAUSER, Andreas et al. Photophysical and photochemical properties of three-dimensional metal-tris-oxalate network structures. In: Molecular Crystals and Liquid Crystals, 1996, vol. 286, n° 22, p. 225. https://archive-ouverte.unige.ch/unige:2972|