A Ruthenium Complex–Porphyrin–Fullerene-Linked Molecular Pentad as an Integrative Photosynthetic Model

Masanori Yamamoto, Jens Föhlinger, Jonas Petersson, Leif Hammarström, Hiroshi Imahori

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

A ruthenium complex, porphyrin sensitizer, fullerene acceptor molecular pentad has been synthesized and a long-lived hole–electron pair was achieved in aqueous solution by photoinduced multistep electron transfer: Upon irradiation by visible light, the excited-state of a zinc porphyrin (1ZnP*) was quenched by fullerene (C60) to afford a radical ion pair, 1,3(ZnP.+-C60 .−). This was followed by the subsequent electron transfer from a water oxidation catalyst unit (RuII) to ZnP.+ to give the long-lived charge-separated state, RuIII-ZnP-C60 .−, with a lifetime of 14 μs. The ZnP worked as a visible-light-harvesting antenna, while the C60 acted as an excellent electron acceptor. As a consequence, visible-light-driven water oxidation by this integrated photosynthetic model compound was achieved in the presence of sacrificial oxidant and redox mediator.

Original languageEnglish
Pages (from-to)3329-3333
Number of pages5
JournalAngewandte Chemie - International Edition
Volume56
Issue number12
DOIs
Publication statusPublished - Mar 13 2017

Fingerprint

Ruthenium
Porphyrins
Fullerenes
Electrons
Oxidation
Water
Oxidants
Excited states
Zinc
Irradiation
Ions
Antennas
Catalysts

Keywords

  • artificial photosynthesis
  • fullerenes
  • molecular pentads
  • photoinduced electron transfer
  • porphyrins
  • ruthenium

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

Cite this

A Ruthenium Complex–Porphyrin–Fullerene-Linked Molecular Pentad as an Integrative Photosynthetic Model. / Yamamoto, Masanori; Föhlinger, Jens; Petersson, Jonas; Hammarström, Leif; Imahori, Hiroshi.

In: Angewandte Chemie - International Edition, Vol. 56, No. 12, 13.03.2017, p. 3329-3333.

Research output: Contribution to journalArticle

Yamamoto, Masanori ; Föhlinger, Jens ; Petersson, Jonas ; Hammarström, Leif ; Imahori, Hiroshi. / A Ruthenium Complex–Porphyrin–Fullerene-Linked Molecular Pentad as an Integrative Photosynthetic Model. In: Angewandte Chemie - International Edition. 2017 ; Vol. 56, No. 12. pp. 3329-3333.
@article{d2f4a3b009b54c2ab4f324d0090d01af,
title = "A Ruthenium Complex–Porphyrin–Fullerene-Linked Molecular Pentad as an Integrative Photosynthetic Model",
abstract = "A ruthenium complex, porphyrin sensitizer, fullerene acceptor molecular pentad has been synthesized and a long-lived hole–electron pair was achieved in aqueous solution by photoinduced multistep electron transfer: Upon irradiation by visible light, the excited-state of a zinc porphyrin (1ZnP*) was quenched by fullerene (C60) to afford a radical ion pair, 1,3(ZnP.+-C60 .−). This was followed by the subsequent electron transfer from a water oxidation catalyst unit (RuII) to ZnP.+ to give the long-lived charge-separated state, RuIII-ZnP-C60 .−, with a lifetime of 14 μs. The ZnP worked as a visible-light-harvesting antenna, while the C60 acted as an excellent electron acceptor. As a consequence, visible-light-driven water oxidation by this integrated photosynthetic model compound was achieved in the presence of sacrificial oxidant and redox mediator.",
keywords = "artificial photosynthesis, fullerenes, molecular pentads, photoinduced electron transfer, porphyrins, ruthenium",
author = "Masanori Yamamoto and Jens F{\"o}hlinger and Jonas Petersson and Leif Hammarstr{\"o}m and Hiroshi Imahori",
year = "2017",
month = "3",
day = "13",
doi = "10.1002/anie.201612456",
language = "English",
volume = "56",
pages = "3329--3333",
journal = "Angewandte Chemie - International Edition",
issn = "1433-7851",
publisher = "John Wiley and Sons Ltd",
number = "12",

}

TY - JOUR

T1 - A Ruthenium Complex–Porphyrin–Fullerene-Linked Molecular Pentad as an Integrative Photosynthetic Model

AU - Yamamoto, Masanori

AU - Föhlinger, Jens

AU - Petersson, Jonas

AU - Hammarström, Leif

AU - Imahori, Hiroshi

PY - 2017/3/13

Y1 - 2017/3/13

N2 - A ruthenium complex, porphyrin sensitizer, fullerene acceptor molecular pentad has been synthesized and a long-lived hole–electron pair was achieved in aqueous solution by photoinduced multistep electron transfer: Upon irradiation by visible light, the excited-state of a zinc porphyrin (1ZnP*) was quenched by fullerene (C60) to afford a radical ion pair, 1,3(ZnP.+-C60 .−). This was followed by the subsequent electron transfer from a water oxidation catalyst unit (RuII) to ZnP.+ to give the long-lived charge-separated state, RuIII-ZnP-C60 .−, with a lifetime of 14 μs. The ZnP worked as a visible-light-harvesting antenna, while the C60 acted as an excellent electron acceptor. As a consequence, visible-light-driven water oxidation by this integrated photosynthetic model compound was achieved in the presence of sacrificial oxidant and redox mediator.

AB - A ruthenium complex, porphyrin sensitizer, fullerene acceptor molecular pentad has been synthesized and a long-lived hole–electron pair was achieved in aqueous solution by photoinduced multistep electron transfer: Upon irradiation by visible light, the excited-state of a zinc porphyrin (1ZnP*) was quenched by fullerene (C60) to afford a radical ion pair, 1,3(ZnP.+-C60 .−). This was followed by the subsequent electron transfer from a water oxidation catalyst unit (RuII) to ZnP.+ to give the long-lived charge-separated state, RuIII-ZnP-C60 .−, with a lifetime of 14 μs. The ZnP worked as a visible-light-harvesting antenna, while the C60 acted as an excellent electron acceptor. As a consequence, visible-light-driven water oxidation by this integrated photosynthetic model compound was achieved in the presence of sacrificial oxidant and redox mediator.

KW - artificial photosynthesis

KW - fullerenes

KW - molecular pentads

KW - photoinduced electron transfer

KW - porphyrins

KW - ruthenium

UR - http://www.scopus.com/inward/record.url?scp=85013080967&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85013080967&partnerID=8YFLogxK

U2 - 10.1002/anie.201612456

DO - 10.1002/anie.201612456

M3 - Article

VL - 56

SP - 3329

EP - 3333

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

SN - 1433-7851

IS - 12

ER -