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A Hole Delocalization Strategy: Photoinduced Mixed-Valence MLCT States Featuring Extended Lifetimes

Aramburu-Troselj BM, Oviedo PS, Pieslinger GE, Hodak JH, Baraldo LM, Guldi DM, Cadranel A (2019)

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Publication Type: Journal article

Publication year: 2019

Journal

Book Volume: 58

Pages Range: 10898-10904

Journal Issue: 16

DOI: 10.1021/acs.inorgchem.9b01254

Abstract

Bimetallic trans-[Ru^II(tpm)(bpy)(μNC)Ru^II(L)4(CN)]²⁺, where bpy is 2,2′-bipyridine, tpm is tris(1-pyrazolyl)methane and L = 4-methoxypyridine (MeOpy) or pyridine (py), was examined using ultrafast vis-NIR transient absorption spectroscopy. Of great relevance are the longest-lived excited states in the form of strongly coupled photoinduced mixed-valence systems, which exhibit intense photoinduced absorptions in the NIR and are freely tunable by the judicious choice of the coordination spheres of the metallic ions. Using the latter strategy, we succeeded in tailoring the excited state lifetimes of bimetallic complexes and, in turn, achieving significantly longer values relative to related monometallic complexes. Notable is the success in extending the lifetimes, when considering the higher density of vibrational states, as they are expected to facilitate nonradiative ground-state recovery.

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How to cite

APA:

Aramburu-Troselj, B.M., Oviedo, P.S., Pieslinger, G.E., Hodak, J.H., Baraldo, L.M., Guldi, D.M., & Cadranel, A. (2019). A Hole Delocalization Strategy: Photoinduced Mixed-Valence MLCT States Featuring Extended Lifetimes. Inorganic Chemistry, 58(16), 10898-10904. https://dx.doi.org/10.1021/acs.inorgchem.9b01254

MLA:

Aramburu-Troselj, Bruno M., et al. "A Hole Delocalization Strategy: Photoinduced Mixed-Valence MLCT States Featuring Extended Lifetimes." Inorganic Chemistry 58.16 (2019): 10898-10904.

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