Synthesis and Characterization of Water-Soluble Silver and Palladium Midazol-2-ylidene Complexes with Noncoordinating Anionic Substituents
Chemistry and Biochemistry
Zwitterionic imidazolium salts have been synthesized bearing alkylsulfonate and alkylcarboxylate substituents and used as precursors to water-soluble metal - carbene complexes. Reaction of the zwitterionic imidazolium compounds with Ag(2)O gave bis(imidazol-2-ylidene) silver complexes. These compounds have been characterized spectroscopically and by electrospray mass spectrometry. A DMSO solvate of bis[1-(2,6-diisopropylphenyl)-3-(3-sulfonatopropyl) imidazol-2-ylidene] silver sodium salt has been structurally characterized. In the solid state, this complex exists as a coordination polymer in which the sodium ions bridge the sulfonate groups from two bis(imidazol-2-ylidene) silver moieties. Diiodobis[1-mesityl-3-(3-sulfonatopropyl) imidazol-2-ylidene] palladium disodium salt has also been prepared in low yield and characterized by NMR spectroscopy and electrospray mass spectrometry.
Moore, L. R.,
Cooks, S. M.,
Anderson, M. S.,
Griffin, S. T.,
Rogers, R. D.,
Kirk, M. C.,
Shaughnessy, K. H.
(2006). Synthesis and Characterization of Water-Soluble Silver and Palladium Midazol-2-ylidene Complexes with Noncoordinating Anionic Substituents. Organometallics, 25(21), 5151-5158.
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