Intramolecular Optical Electron Transfer in Mixed-Valent Dinuclear Iron−Ruthenium Complexes Featuring a 1,4-Diethynylaryl Spacer
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- 作者：Nicolas Gauthier ; Cé ; line Olivier ; Sté ; phane Rigaut ; Daniel Touchard ; Thierry Roisnel ; Mark G. Humphrey ; Fré ; dé ; ric Paul
- 刊名：Organometallics
- 出版年：2008
- 出版时间：March 24, 2008
- 年：2008
- 卷：27
- 期：6
- 页码：1063 - 1072
- 全文大小：598K
- 年卷期：v.27,no.6(March 24, 2008)
- ISSN：1520-6041
文摘
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-(C6H4)CC]Ru(η2-dppe)2(X)][PF6] (X = Cl, 2; X = CC(4-C6H4NO2), 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.
C-1,4-(C6H4)CC]Ru(η2-dppe)2(X)][PF6] (X = Cl, 2; X = CC(4-C6H4NO2), 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.