Distant ultrafast energy transfer in a trimetallic {Ru-Ru-Cr} complex facilitated by hole delocalization

Multi-metallic complexes based on {Ru-Cr}, {Ru-Ru} and {Ru-Ru-Cr} fragments are investigated for their light-harvesting and long-range energy transfer properties. We report the synthesis and characterization of [Ru(tpy)(bpy)(μ-CN)Ru(py)4Cl]2+ and [Ru(tpy)(bpy)(μ-CN)Ru(py)4(μ-NC)Cr(CN)5]. The interca...

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Autores principales: Cadranel, A., Tate, J.E., Oviedo, P.S., Yamazaki, S., Hodak, J.H., Baraldo, L.M., Kleiman, V.D.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_14639076_v19_n4_p2882_Cadranel
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_14639076_v19_n4_p2882_Cadranel2023-10-03T16:16:56Z Distant ultrafast energy transfer in a trimetallic {Ru-Ru-Cr} complex facilitated by hole delocalization Cadranel, A. Tate, J.E. Oviedo, P.S. Yamazaki, S. Hodak, J.H. Baraldo, L.M. Kleiman, V.D. Multi-metallic complexes based on {Ru-Cr}, {Ru-Ru} and {Ru-Ru-Cr} fragments are investigated for their light-harvesting and long-range energy transfer properties. We report the synthesis and characterization of [Ru(tpy)(bpy)(μ-CN)Ru(py)4Cl]2+ and [Ru(tpy)(bpy)(μ-CN)Ru(py)4(μ-NC)Cr(CN)5]. The intercalation of {RuII(py)4} linked by cyanide bridges between {Ru(tpy)(bpy)} and {Cr(CN)5} results in efficient, distant energy transfer followed by emission from the Cr moiety. Characterization of the energy transfer process based on photophysical and ultrafast time-resolved absorption suggests the delocalization of holes in the excited state, providing a pathway for energy transfer between the end moieties. The proposed mechanism opens the door to utilize this family of complexes as an appealing platform for the design of antenna compounds as the properties of the fragments could be tuned independently. © 2017 the Owner Societies. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_14639076_v19_n4_p2882_Cadranel
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description Multi-metallic complexes based on {Ru-Cr}, {Ru-Ru} and {Ru-Ru-Cr} fragments are investigated for their light-harvesting and long-range energy transfer properties. We report the synthesis and characterization of [Ru(tpy)(bpy)(μ-CN)Ru(py)4Cl]2+ and [Ru(tpy)(bpy)(μ-CN)Ru(py)4(μ-NC)Cr(CN)5]. The intercalation of {RuII(py)4} linked by cyanide bridges between {Ru(tpy)(bpy)} and {Cr(CN)5} results in efficient, distant energy transfer followed by emission from the Cr moiety. Characterization of the energy transfer process based on photophysical and ultrafast time-resolved absorption suggests the delocalization of holes in the excited state, providing a pathway for energy transfer between the end moieties. The proposed mechanism opens the door to utilize this family of complexes as an appealing platform for the design of antenna compounds as the properties of the fragments could be tuned independently. © 2017 the Owner Societies.
format JOUR
author Cadranel, A.
Tate, J.E.
Oviedo, P.S.
Yamazaki, S.
Hodak, J.H.
Baraldo, L.M.
Kleiman, V.D.
spellingShingle Cadranel, A.
Tate, J.E.
Oviedo, P.S.
Yamazaki, S.
Hodak, J.H.
Baraldo, L.M.
Kleiman, V.D.
Distant ultrafast energy transfer in a trimetallic {Ru-Ru-Cr} complex facilitated by hole delocalization
author_facet Cadranel, A.
Tate, J.E.
Oviedo, P.S.
Yamazaki, S.
Hodak, J.H.
Baraldo, L.M.
Kleiman, V.D.
author_sort Cadranel, A.
title Distant ultrafast energy transfer in a trimetallic {Ru-Ru-Cr} complex facilitated by hole delocalization
title_short Distant ultrafast energy transfer in a trimetallic {Ru-Ru-Cr} complex facilitated by hole delocalization
title_full Distant ultrafast energy transfer in a trimetallic {Ru-Ru-Cr} complex facilitated by hole delocalization
title_fullStr Distant ultrafast energy transfer in a trimetallic {Ru-Ru-Cr} complex facilitated by hole delocalization
title_full_unstemmed Distant ultrafast energy transfer in a trimetallic {Ru-Ru-Cr} complex facilitated by hole delocalization
title_sort distant ultrafast energy transfer in a trimetallic {ru-ru-cr} complex facilitated by hole delocalization
url http://hdl.handle.net/20.500.12110/paper_14639076_v19_n4_p2882_Cadranel
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AT tateje distantultrafastenergytransferinatrimetallicrurucrcomplexfacilitatedbyholedelocalization
AT oviedops distantultrafastenergytransferinatrimetallicrurucrcomplexfacilitatedbyholedelocalization
AT yamazakis distantultrafastenergytransferinatrimetallicrurucrcomplexfacilitatedbyholedelocalization
AT hodakjh distantultrafastenergytransferinatrimetallicrurucrcomplexfacilitatedbyholedelocalization
AT baraldolm distantultrafastenergytransferinatrimetallicrurucrcomplexfacilitatedbyholedelocalization
AT kleimanvd distantultrafastenergytransferinatrimetallicrurucrcomplexfacilitatedbyholedelocalization
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