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Issue 35, 2009
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Sulfonate- or carboxylate-functionalized N-heterocyclic bis-carbene ligands and related water soluble silver complexes

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Abstract

New N-heterocyclic carbene ligand precursors {H2C(HTzR)2} and {H2C(HImR)2} (HTz = 1,2,4-triazole; HIm = imidazole; R = PrSO3 or EtCOO) were obtained starting from the compounds bis(1,2,4-triazol-1-yl)methane and bis(imidazol-1-yl)methane. The related silver(I) carbene complexes were prepared in degassed water solution by treatment of the triazolium or imidazolium species with Ag2O, resulting in well-characterized and water soluble bimetallic complexes of general formula {Na2[H2C(TzR)2]2Ag2} and {Na2[H2C(ImR)2]2Ag2}. In these metallacycles every silver atom is coordinated to two triazolin- or imidazolin-2-ylidene rings, belonging to two different dicarbene units.

Graphical abstract: Sulfonate- or carboxylate-functionalized N-heterocyclic bis-carbene ligands and related water soluble silver complexes

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Publication details

The article was received on 07 Apr 2009, accepted on 26 May 2009 and first published on 02 Jul 2009


Article type: Paper
DOI: 10.1039/B906994A
Citation: Dalton Trans., 2009,0, 6985-6990
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    Sulfonate- or carboxylate-functionalized N-heterocyclic bis-carbene ligands and related water soluble silver complexes

    G. Papini, M. Pellei, G. Gioia Lobbia, A. Burini and C. Santini, Dalton Trans., 2009, 0, 6985
    DOI: 10.1039/B906994A

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