Title

Synthesis and Characterization of Water-Soluble Silver and Palladium Midazol-2-ylidene Complexes with Noncoordinating Anionic Substituents

Document Type

Article

Publication Date

10-9-2006

Department

Chemistry and Biochemistry

Abstract

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.

Publication Title

Organometallics

Volume

25

Issue

21

First Page

5151

Last Page

5158