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Article Dans Une Revue Organometallics Année : 2012

Extending Metal-Capped Polyynediyl Molecular Wires by Insertion of Inorganic Metal Units

Michael I. Bruce
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Nancy Scoleri
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Natasha N. Zaitseva
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Résumé

Several symmetric and asymmetric bis(metalla-diynediyl)ruthenium(II) complexes of the general formula trans-{LxRu}C≡CC≡C{Ru(dppe)2}C≡CC≡C{RuL′y} (Lx, L′y = (PPh3)2Cp, (dppe)Cp, (dppe)Cp*), containing Ru(dppe)2 as the central linking group, have been successfully synthesized and characterized spectroscopically. DFT calculations show that their HOMO's are delocalized over the Ru-C4-Ru-C4-Ru chain, suggesting that there is electronic interaction between the terminal RuLx groups through the C4 chains and the Ru(dppe)2 center. Limited electrochemical measurements reveal that the complexes undergo a series of five stepwise reversible or quasi-reversible oxidation processes.
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Dates et versions

hal-00753666 , version 1 (19-11-2012)

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Michael I. Bruce, Boris Le Guennic, Nancy Scoleri, Natasha N. Zaitseva, Jean-François Halet. Extending Metal-Capped Polyynediyl Molecular Wires by Insertion of Inorganic Metal Units. Organometallics, 2012, 31 ((13)), pp.4701-4706. ⟨10.1021/om3000949⟩. ⟨hal-00753666⟩
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