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Closed Access item Ethylene Coordination and Acetylene Dimerization at Tp′IrIII Centers

Authors:Lara, Patricia
López-Serrano, Joaquín
Maya, Celia
Paneque, Margarita
López Poveda, Manuel
Sánchez, Luis J.
Villar Valpuesta, José E.
Carmona Guzmán, Ernesto
Keywords:Metal, Ethylene, Iridium, Carbenes, Hydrocarbons, Alkynes, Alkenes, X-ray
Issue Date:30-Jul-2009
Publisher:American Chemical Society
Citation:Organometallics 28(16): 4649-4651 (2009)
Abstract:The compound TpMs′′Ir(N2) (1·N2; TpMs′′ = doubly metalated hydrotris(3-mesitylpyrazol-1-yl)borate ligand) reacts with ethylene with formation of the adduct TpMs′′Ir(C2H4) (2), while with acetylene it gives TpMs′′Ir(H2C═CHC≡CH) (3; the enyne coordinated through the C═C double bond), as the result of the dimerization of the alkyne. Experimental and theoretical studies have been carried out in order to address the kinetic reactivity of the fragment [TpMs′′Ir] (1) toward C2H4 and C2H2 and the thermodynamic stabilities of the resulting adducts.
Description:3 páginas, 2 figuras, 2 esquemas.
Publisher version (URL):http://dx.doi.org/10.1021/om900541r
URI:http://hdl.handle.net/10261/37704
ISSN:0276-7333
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Appears in Collections:(IIQ) Artículos

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