Electronic Energy Transduction from {Ru(py)4} Chromophores to Cr(III) Luminophores
Cadranel A, Oviedo PS, Albores P, Baraldo LM, Guldi DM, Hodak JH (2018)
Publication Type: Journal article
Publication year: 2018
Journal
Book Volume: 57
Pages Range: 3042-3053
Journal Issue: 6
DOI: 10.1021/acs.inorgchem.7b02799
Abstract
Despite the large body of work on {Ru(bpy)2} sensitizer fragments, the same attention has not been devoted to their {Ru(py)4} analogues. In this context, we explored the donor-acceptor trans-[Ru(L)4{(μ-NC)Cr(CN)5}2]4-, where L = pyridine, 4-methoxypyridine, 4-dimethylaminopyridine. We report on the synthesis and the crystal structure as well as the electrochemical, spectroscopical, and photophysical properties of these trimetallic complexes, including transient absorption measurements. We observed emission from chromium-centered d-d states upon illuminating into either MLCT or MM′CT absorptions of {Ru(L)4} or {Ru-Cr}, respectively. The underlying energy transfer is as fast as 600 fs with quantum efficiencies ranging from 10% to 100%. These results document that {Ru(py)4} sensitizer fragments are as efficient as {Ru(bpy)2} in short-range energy transfer scenarios.
Authors with CRIS profile
Alejandro Cadranel
Lehrstuhl für Physikalische Chemie I
Dirk Michael Guldi
Lehrstuhl für Physikalische Chemie I
Involved external institutions
Argentina (AR)How to cite
APA:
Cadranel, A., Oviedo, P.S., Albores, P., Baraldo, L.M., Guldi, D.M., & Hodak, J.H. (2018). Electronic Energy Transduction from {Ru(py)4} Chromophores to Cr(III) Luminophores. Inorganic Chemistry, 57(6), 3042-3053. https://doi.org/10.1021/acs.inorgchem.7b02799
MLA:
Cadranel, Alejandro, et al. "Electronic Energy Transduction from {Ru(py)4} Chromophores to Cr(III) Luminophores." Inorganic Chemistry 57.6 (2018): 3042-3053.
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