Efficient Convergent Energy Transfer in a Stereoisomerically Pure Heptanuclear Luminescent Terpyridine-Based Ru(II)–Os(II) Dendrimer - Archive ouverte HAL
Article Dans Une Revue Inorganic Chemistry Année : 2020

Efficient Convergent Energy Transfer in a Stereoisomerically Pure Heptanuclear Luminescent Terpyridine-Based Ru(II)–Os(II) Dendrimer

Simon Cerfontaine
Quentin Duez
  • Fonction : Auteur
Ludovic Troian-Gautier
Gabriella Barozzino-Consiglio
  • Fonction : Auteur
Jérôme Cornil
Julien de Winter
Pascal Gerbaux
Benjamin Elias

Résumé

The stereoisomerically pure synthesis of a novel heptanuclear Ru(II)−Os(II) antenna bearing multitopic terpyridine ligands is reported. An unambiguous structural characterization was obtained by 1H NMR spectroscopy and ion mobility spectrometry (IMS-MS). The heptanuclear complex exhibits large molar absorption coefficients (77900 M−1 cm−1 at 497 nm) and undergoes unitary, downhill, convergent energy transfer from the peripheral Ru(II) subunits to the central Os(II) that displays photoluminescence with a lifetime (τ = 161 ns) competent for diffusional excited-state electron transfer reactivity in solution.
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Dates et versions

hal-04692744 , version 1 (10-09-2024)

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Citer

Simon Cerfontaine, Quentin Duez, Ludovic Troian-Gautier, Gabriella Barozzino-Consiglio, Frédérique Loiseau, et al.. Efficient Convergent Energy Transfer in a Stereoisomerically Pure Heptanuclear Luminescent Terpyridine-Based Ru(II)–Os(II) Dendrimer. Inorganic Chemistry, 2020, 59 (19), pp.14536-14543. ⟨10.1021/acs.inorgchem.0c02336⟩. ⟨hal-04692744⟩
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