Upconversion in a d-f [RuYb3] supramolecular assembly
Upconversion in a d-f [RuYb3] supramolecular assembly
We have prepared a hetero-tetrametallic assembly consisting of three ytterbium ions coordinated to a central [Ru(bpm)3]2+(bpm = 2,2′-bipyrimidine) motif. Irradiation into the absorption band of the peripheral ytterbium ions at 980 nm engenders emission of the 3MLCT state of the central [Ru(bpm)3]2+core at 636 nm, which represents the first example of f → d molecular upconversion (UC). Time-resolved measurements reveal a slow rise of the UC emission, which was modeled with a mathematical treatment of the observed kinetics according to a cooperative photosensitization mechanism using a virtual Yb centered doubly excited state followed by energy transfer to the Ru centered 1MLCT state.
13356-13365
Knighton, Richard C.
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Soro, Lohona K.
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Thor, Waygen
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Strub, Jean Marc
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Cianférani, Sarah
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Mély, Yves
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Lenertz, Marc
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Wong, Ka Leung
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Platas-Iglesias, Carlos
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Przybilla, Frédéric
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Charbonnière, Loïc J.
cb976ce4-b45a-493c-bd86-3a5c508678d5
27 July 2022
Knighton, Richard C.
5a63128e-0ebd-466a-b327-3aee6e85a76d
Soro, Lohona K.
38527bf7-6809-4629-8292-005031501b98
Thor, Waygen
0268a536-252a-4fa4-b1d4-e469c69d4d57
Strub, Jean Marc
7280b3d1-7d2b-48bf-bbe6-3c1001a2e9f4
Cianférani, Sarah
f9f23c7c-eb76-42ea-a817-fb16dd5f2998
Mély, Yves
99d0bcfd-7f10-4658-ba53-3093c06b5e0a
Lenertz, Marc
591dbe97-102c-4bda-a9fa-2860544e9dea
Wong, Ka Leung
f6f18771-35ce-4bc2-b770-e886b025ab5e
Platas-Iglesias, Carlos
09138148-02fd-4418-951d-dce9b5ecd0a0
Przybilla, Frédéric
b732a7dd-b740-4df6-b328-46eeca2f0699
Charbonnière, Loïc J.
cb976ce4-b45a-493c-bd86-3a5c508678d5
Knighton, Richard C., Soro, Lohona K., Thor, Waygen, Strub, Jean Marc, Cianférani, Sarah, Mély, Yves, Lenertz, Marc, Wong, Ka Leung, Platas-Iglesias, Carlos, Przybilla, Frédéric and Charbonnière, Loïc J.
(2022)
Upconversion in a d-f [RuYb3] supramolecular assembly.
Journal of the American Chemical Society, 144 (29), .
(doi:10.1021/jacs.2c05037).
Abstract
We have prepared a hetero-tetrametallic assembly consisting of three ytterbium ions coordinated to a central [Ru(bpm)3]2+(bpm = 2,2′-bipyrimidine) motif. Irradiation into the absorption band of the peripheral ytterbium ions at 980 nm engenders emission of the 3MLCT state of the central [Ru(bpm)3]2+core at 636 nm, which represents the first example of f → d molecular upconversion (UC). Time-resolved measurements reveal a slow rise of the UC emission, which was modeled with a mathematical treatment of the observed kinetics according to a cooperative photosensitization mechanism using a virtual Yb centered doubly excited state followed by energy transfer to the Ru centered 1MLCT state.
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e-pub ahead of print date: 30 June 2022
Published date: 27 July 2022
Identifiers
Local EPrints ID: 482246
URI: http://eprints.soton.ac.uk/id/eprint/482246
ISSN: 0002-7863
PURE UUID: aabb4717-4901-496c-bce8-6a32ac07bed4
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Date deposited: 22 Sep 2023 16:31
Last modified: 18 Mar 2024 04:15
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Contributors
Author:
Richard C. Knighton
Author:
Lohona K. Soro
Author:
Waygen Thor
Author:
Jean Marc Strub
Author:
Sarah Cianférani
Author:
Yves Mély
Author:
Marc Lenertz
Author:
Ka Leung Wong
Author:
Carlos Platas-Iglesias
Author:
Frédéric Przybilla
Author:
Loïc J. Charbonnière
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