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

Involved external institutions

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.

BibTeX: Download