Photoinduced electron transfer in supramolecular ruthenium-porphyrin assemblies

Diego Rota Martir; Mattia Averardi; Daniel Escudero; Denis Jacquemin; Eli Zysman-Colman

doi:10.1039/C6DT04414J

Photoinduced electron transfer in supramolecular ruthenium-porphyrin assemblies

Diego Rota Martir, Mattia Averardi, Daniel Escudero, Denis Jacquemin, Eli Zysman-Colman

Research output: Contribution to journal › Article › peer-review

Abstract

We present dynamic supramolecular systems composed of a Ru(II) complex of the form of [Ru(dtBubpy)₂(qpy)][PF₆]₂(where dtBubpy is 4,4′-di-tert-butyl-2,2′-dipyridyl and qpy is 4,4':2',2'':4'',4'''-quaterpyridine) and zinc tetraphenylporphyrins (ZnTPP), through non- covalent interactions between the distal pyridine moieties of the qpy ligand the zinc of ZnTPP. The optoelectronic properties of the assemblies and the electronic interactions between the chromophoric units have been comprehensively characterized by computational investigations, and steady-state and time-resolved emission spectroscopy. Upon photoexcitation of ZnTPP, electron transfer to the ruthenium center is thermodynamically favorable and, as a result, strong emission quenching of both units occurs.

Original language	English
Pages (from-to)	2255-2262
Number of pages	8
Journal	Dalton Transactions
Volume	46
Issue number	7
Early online date	11 Jan 2017
DOIs	https://doi.org/10.1039/C6DT04414J
Publication status	Published - 21 Feb 2017

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Supramolecular-RuZn 13
© 2017 the Authors. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1039/C6DT04414J
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Cite this

@article{00dfc552faa74a41a7336aa6f8e9c821,

title = "Photoinduced electron transfer in supramolecular ruthenium-porphyrin assemblies",

abstract = "We present dynamic supramolecular systems composed of a Ru(II) complex of the form of [Ru(dtBubpy)2(qpy)][PF6]2 (where dtBubpy is 4,4′-di-tert-butyl-2,2′-dipyridyl and qpy is 4,4':2',2'':4'',4'''-quaterpyridine) and zinc tetraphenylporphyrins (ZnTPP), through non- covalent interactions between the distal pyridine moieties of the qpy ligand the zinc of ZnTPP. The optoelectronic properties of the assemblies and the electronic interactions between the chromophoric units have been comprehensively characterized by computational investigations, and steady-state and time-resolved emission spectroscopy. Upon photoexcitation of ZnTPP, electron transfer to the ruthenium center is thermodynamically favorable and, as a result, strong emission quenching of both units occurs.",

author = "{Rota Martir}, Diego and Mattia Averardi and Daniel Escudero and Denis Jacquemin and Eli Zysman-Colman",

note = "EZ-C acknowledges the University of St Andrews and EPSRC (EP/M02105X/1) for financial support. DE thanks funding from the European Union{\textquoteright}s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 700961. DJ acknowledges the European Research Council (grant: 278845) and the RFI Lumomat for financial support.",

year = "2017",

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doi = "10.1039/C6DT04414J",

language = "English",

volume = "46",

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journal = "Dalton Transactions",

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publisher = "ROYAL SOC CHEMISTRY",

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TY - JOUR

T1 - Photoinduced electron transfer in supramolecular ruthenium-porphyrin assemblies

AU - Rota Martir, Diego

AU - Averardi, Mattia

AU - Escudero, Daniel

AU - Jacquemin, Denis

AU - Zysman-Colman, Eli

N1 - EZ-C acknowledges the University of St Andrews and EPSRC (EP/M02105X/1) for financial support. DE thanks funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 700961. DJ acknowledges the European Research Council (grant: 278845) and the RFI Lumomat for financial support.

PY - 2017/2/21

Y1 - 2017/2/21

N2 - We present dynamic supramolecular systems composed of a Ru(II) complex of the form of [Ru(dtBubpy)2(qpy)][PF6]2 (where dtBubpy is 4,4′-di-tert-butyl-2,2′-dipyridyl and qpy is 4,4':2',2'':4'',4'''-quaterpyridine) and zinc tetraphenylporphyrins (ZnTPP), through non- covalent interactions between the distal pyridine moieties of the qpy ligand the zinc of ZnTPP. The optoelectronic properties of the assemblies and the electronic interactions between the chromophoric units have been comprehensively characterized by computational investigations, and steady-state and time-resolved emission spectroscopy. Upon photoexcitation of ZnTPP, electron transfer to the ruthenium center is thermodynamically favorable and, as a result, strong emission quenching of both units occurs.

AB - We present dynamic supramolecular systems composed of a Ru(II) complex of the form of [Ru(dtBubpy)2(qpy)][PF6]2 (where dtBubpy is 4,4′-di-tert-butyl-2,2′-dipyridyl and qpy is 4,4':2',2'':4'',4'''-quaterpyridine) and zinc tetraphenylporphyrins (ZnTPP), through non- covalent interactions between the distal pyridine moieties of the qpy ligand the zinc of ZnTPP. The optoelectronic properties of the assemblies and the electronic interactions between the chromophoric units have been comprehensively characterized by computational investigations, and steady-state and time-resolved emission spectroscopy. Upon photoexcitation of ZnTPP, electron transfer to the ruthenium center is thermodynamically favorable and, as a result, strong emission quenching of both units occurs.

UR - http://www.rsc.org/suppdata/c6/dt/c6dt04414j/c6dt04414j1.pdf

U2 - 10.1039/C6DT04414J

DO - 10.1039/C6DT04414J

M3 - Article

SN - 1477-9226

VL - 46

SP - 2255

EP - 2262

JO - Dalton Transactions

JF - Dalton Transactions

IS - 7

ER -

Photoinduced electron transfer in supramolecular ruthenium-porphyrin assemblies

Abstract

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