Photoinduced Electron Transfer from a Higher Excited State of a Porphyrin in a Zinc Porphyrin- Ruthenium(II) tris-Bipyridine Dyad

Denis Legourriérec, Mikael Andersson, Jan Davidsson, Emad Mukhtar, Licheng Sun, Leif Hammarström

Research output: Contribution to journalArticle

89 Citations (Scopus)

Abstract

Pump-probe spectroscopy and steady state emission measurements have been used to demonstrate electron transfer from the excited state populated by excitation in the Soret band (denoted S2) of a zinc porphyrin to a covalently linked ruthenium(II) tris-bipyridine complex (ZnTTP-L-Ru(bpy)3). The lifetime of 1.6 ps measured for the S2 state of the zinc porphyrin (ZnTTP) was reduced to 0.8 ps in the dyad. On the basis of fluorescence data and transient absorption spectra, energy transfer from the porphyrin to the ruthenium was found to be negligible. Instead, electron transfer from the S2 state occurred with a rate constant of 6 × 1011 s-1.

Original languageEnglish
JournalJournal of Physical Chemistry A
Volume103
Issue number5
Publication statusPublished - 1999

Fingerprint

Ruthenium
Porphyrins
Excited states
porphyrins
ruthenium
electron transfer
zinc
Electrons
Energy transfer
excitation
Absorption spectra
Rate constants
Fluorescence
Pumps
Spectroscopy
energy transfer
pumps
absorption spectra
life (durability)
fluorescence

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Photoinduced Electron Transfer from a Higher Excited State of a Porphyrin in a Zinc Porphyrin- Ruthenium(II) tris-Bipyridine Dyad. / Legourriérec, Denis; Andersson, Mikael; Davidsson, Jan; Mukhtar, Emad; Sun, Licheng; Hammarström, Leif.

In: Journal of Physical Chemistry A, Vol. 103, No. 5, 1999.

Research output: Contribution to journalArticle

Legourriérec, Denis ; Andersson, Mikael ; Davidsson, Jan ; Mukhtar, Emad ; Sun, Licheng ; Hammarström, Leif. / Photoinduced Electron Transfer from a Higher Excited State of a Porphyrin in a Zinc Porphyrin- Ruthenium(II) tris-Bipyridine Dyad. In: Journal of Physical Chemistry A. 1999 ; Vol. 103, No. 5.
@article{e01f70df11f54125825816244bbdedec,
title = "Photoinduced Electron Transfer from a Higher Excited State of a Porphyrin in a Zinc Porphyrin- Ruthenium(II) tris-Bipyridine Dyad",
abstract = "Pump-probe spectroscopy and steady state emission measurements have been used to demonstrate electron transfer from the excited state populated by excitation in the Soret band (denoted S2) of a zinc porphyrin to a covalently linked ruthenium(II) tris-bipyridine complex (ZnTTP-L-Ru(bpy)3). The lifetime of 1.6 ps measured for the S2 state of the zinc porphyrin (ZnTTP) was reduced to 0.8 ps in the dyad. On the basis of fluorescence data and transient absorption spectra, energy transfer from the porphyrin to the ruthenium was found to be negligible. Instead, electron transfer from the S2 state occurred with a rate constant of 6 × 1011 s-1.",
author = "Denis Legourri{\'e}rec and Mikael Andersson and Jan Davidsson and Emad Mukhtar and Licheng Sun and Leif Hammarstr{\"o}m",
year = "1999",
language = "English",
volume = "103",
journal = "Journal of Physical Chemistry A",
issn = "1089-5639",
publisher = "American Chemical Society",
number = "5",

}

TY - JOUR

T1 - Photoinduced Electron Transfer from a Higher Excited State of a Porphyrin in a Zinc Porphyrin- Ruthenium(II) tris-Bipyridine Dyad

AU - Legourriérec, Denis

AU - Andersson, Mikael

AU - Davidsson, Jan

AU - Mukhtar, Emad

AU - Sun, Licheng

AU - Hammarström, Leif

PY - 1999

Y1 - 1999

N2 - Pump-probe spectroscopy and steady state emission measurements have been used to demonstrate electron transfer from the excited state populated by excitation in the Soret band (denoted S2) of a zinc porphyrin to a covalently linked ruthenium(II) tris-bipyridine complex (ZnTTP-L-Ru(bpy)3). The lifetime of 1.6 ps measured for the S2 state of the zinc porphyrin (ZnTTP) was reduced to 0.8 ps in the dyad. On the basis of fluorescence data and transient absorption spectra, energy transfer from the porphyrin to the ruthenium was found to be negligible. Instead, electron transfer from the S2 state occurred with a rate constant of 6 × 1011 s-1.

AB - Pump-probe spectroscopy and steady state emission measurements have been used to demonstrate electron transfer from the excited state populated by excitation in the Soret band (denoted S2) of a zinc porphyrin to a covalently linked ruthenium(II) tris-bipyridine complex (ZnTTP-L-Ru(bpy)3). The lifetime of 1.6 ps measured for the S2 state of the zinc porphyrin (ZnTTP) was reduced to 0.8 ps in the dyad. On the basis of fluorescence data and transient absorption spectra, energy transfer from the porphyrin to the ruthenium was found to be negligible. Instead, electron transfer from the S2 state occurred with a rate constant of 6 × 1011 s-1.

UR - http://www.scopus.com/inward/record.url?scp=0347600446&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0347600446&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0347600446

VL - 103

JO - Journal of Physical Chemistry A

JF - Journal of Physical Chemistry A

SN - 1089-5639

IS - 5

ER -