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Título

Water-soluble and water-stable organometallic gold(II) complexes

AutorMohr, Fabian; Sanz, Sergio; Tiekink, Edward R. T.; Laguna, Mariano
Fecha de publicaciónmay-2006
EditorAmerican Chemical Society
CitaciónOrganometallics 25(12): 3084-3087 (2006)
ResumenThe dicationic digold(II) complexes [Au2{μ-(CH2)2PPh2}2(P)2](OTf)2, where P are the water-sol-uble phosphine ligands 1,3,5-triaza-7-phosphaadamantane (TPA), 3,7-diacetyl-1,3,7-triaza-5-phosphabi-cyclo[3.3.1]nonane (DAPTA), and mono-, di-, and trisulfonated triphenylphosphines (TPPMS, TPPDS, TPPTS), were prepared by a metathesis reaction from [Au2Cl2{μ-(CH2)2PPh2}2] with the silver(I) salts [Ag(OTf)(P)]. The complexes where fully characterized by spectroscopic methods and, in the case of [Au2{μ-(CH2)2PPh2}2(TPA)2](OTf)2, by X-ray diffraction. The complexes containing sulfonated tri-phenylphosphine ligands are very water soluble (up to 75 g/L) and also are stable in water. The catalytic activity of [Au2{μ-(CH2)2PPh2}2(TPPDS)2](OTf)2 in the addition of MeOH to phenyl acetylene in an aqueous medium was tested; however the complex was found to be a poor catalyst for this reaction under these conditions.
Descripción4 pages, 2 tables, 2 figures, 1 scheme.-- Supporting Information Available: http://pubs.acs.org.
Versión del editorhttp://dx.doi.org/10.1021/om0602456
URIhttp://hdl.handle.net/10261/19803
DOI10.1021/om0602456
ISSN0276-7333
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