Intramolecular optical electron transfer in mixed-valent dinuclear iron-ruthenium complexes featuring a 1,4-diethynylaryl spacer

Nicolas Gauthier; Céline Olivier; Stéphane Rigaut; Daniel Touchard; Thierry Roisnel; Mark G. Humphrey; Frédéric Paul

doi:10.1021/om700584m

Intramolecular optical electron transfer in mixed-valent dinuclear iron-ruthenium complexes featuring a 1,4-diethynylaryl spacer

Nicolas Gauthier, Céline Olivier, Stéphane Rigaut^*, Daniel Touchard, Thierry Roisnel, Mark G. Humphrey, Frédéric Paul

^*Corresponding author for this work

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

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Abstract

The ground-state electronic structure and the lowest-lying excited states of the cationic mixed-valent dinuclear complexes [(η²-dppe) (η⁵-C₅Me₅)Fe[C≡C-1,4-(C ₆H₄)C≡C]Ru(η²-dppe) ₂(X)][PF₆] (X = Cl, 2; X = C≡C(4-C₆H ₄NO₂), 5) are discussed, with particular emphasis on the photoinduced intramolecular electron transfer between the ruthenium and iron centers. The location and intensities of the low-lying absorptions exhibited in the near-infrared (near-IR) range by these heterodinuclear mixed-valent (MV) complexes correlate with predictions based on the Hush model, strongly suggesting that they correspond to intervalence charge-transfer (IVCT) bands.

Original language	English
Pages (from-to)	1063-1072
Number of pages	10
Journal	Organometallics
Volume	27
Issue number	6
DOIs	https://doi.org/10.1021/om700584m
Publication status	Published - 24 Mar 2008

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title = "Intramolecular optical electron transfer in mixed-valent dinuclear iron-ruthenium complexes featuring a 1,4-diethynylaryl spacer",

abstract = "The ground-state electronic structure and the lowest-lying excited states of the cationic mixed-valent dinuclear complexes [(η2-dppe) (η5-C5Me5)Fe[C≡C-1,4-(C 6H4)C≡C]Ru(η2-dppe) 2(X)][PF6] (X = Cl, 2; X = C≡C(4-C6H 4NO2), 5) are discussed, with particular emphasis on the photoinduced intramolecular electron transfer between the ruthenium and iron centers. The location and intensities of the low-lying absorptions exhibited in the near-infrared (near-IR) range by these heterodinuclear mixed-valent (MV) complexes correlate with predictions based on the Hush model, strongly suggesting that they correspond to intervalence charge-transfer (IVCT) bands.",

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doi = "10.1021/om700584m",

language = "English",

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T1 - Intramolecular optical electron transfer in mixed-valent dinuclear iron-ruthenium complexes featuring a 1,4-diethynylaryl spacer

AU - Gauthier, Nicolas

AU - Olivier, Céline

AU - Rigaut, Stéphane

AU - Touchard, Daniel

AU - Roisnel, Thierry

AU - Humphrey, Mark G.

AU - Paul, Frédéric

PY - 2008/3/24

Y1 - 2008/3/24

N2 - The ground-state electronic structure and the lowest-lying excited states of the cationic mixed-valent dinuclear complexes [(η2-dppe) (η5-C5Me5)Fe[C≡C-1,4-(C 6H4)C≡C]Ru(η2-dppe) 2(X)][PF6] (X = Cl, 2; X = C≡C(4-C6H 4NO2), 5) are discussed, with particular emphasis on the photoinduced intramolecular electron transfer between the ruthenium and iron centers. The location and intensities of the low-lying absorptions exhibited in the near-infrared (near-IR) range by these heterodinuclear mixed-valent (MV) complexes correlate with predictions based on the Hush model, strongly suggesting that they correspond to intervalence charge-transfer (IVCT) bands.

AB - The ground-state electronic structure and the lowest-lying excited states of the cationic mixed-valent dinuclear complexes [(η2-dppe) (η5-C5Me5)Fe[C≡C-1,4-(C 6H4)C≡C]Ru(η2-dppe) 2(X)][PF6] (X = Cl, 2; X = C≡C(4-C6H 4NO2), 5) are discussed, with particular emphasis on the photoinduced intramolecular electron transfer between the ruthenium and iron centers. The location and intensities of the low-lying absorptions exhibited in the near-infrared (near-IR) range by these heterodinuclear mixed-valent (MV) complexes correlate with predictions based on the Hush model, strongly suggesting that they correspond to intervalence charge-transfer (IVCT) bands.

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U2 - 10.1021/om700584m

DO - 10.1021/om700584m

M3 - Article

SN - 0276-7333

VL - 27

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EP - 1072

JO - Organometallics

JF - Organometallics

IS - 6

ER -

Intramolecular optical electron transfer in mixed-valent dinuclear iron-ruthenium complexes featuring a 1,4-diethynylaryl spacer

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