Dimethyl sulfoxide complexes of silver(I) in solution

✍ Scribed by Dean C. Luehrs; Robert W. Nicholas; David A. Hamm

• Publisher: Elsevier Science
• Year: 1971
• Weight: 249 KB
• Volume: 29
• Category: Article
• ISSN: 0022-0728
• DOI: 10.1016/s0022-0728(71)80103-1

✦ Synopsis

Dimethyl sulfoxide (DMSO) is recognized as a good coordinating solvent 1. A large number of DMSO complexes of metal ions have been prepared in the solid state 1-6. Generally, coordination is through the oxygen of the DMSO, but a few cases are known where coordination is through the sulfur 1-3,6.

Consideration of the formal reduction potential of silver(I) ion in various solvents (see Table 1) indicates that DMSO complexes of silver(I) should be stable in solvents such as nitroethane and even water, as well as in the solid state. Acetonitrile complexes of silver(I) in water and other solvents have been characterized 7'8 even though the reduction potential of silver(I) in acetonitrile is somewhat more positive than in DMSO. EXPERIMENTAL Sulfolane (Shell) was purified by the procedure of Headridge et al. 9. Reagent