Structural Studies of Organic Silver Complexes in Dimethyl Sulfoxide by 13C and 109Ag NMR

P. M. Henrichs, G. E. Maciel, S. Sheard, J. J.H. Ackerman

Research output: Contribution to journalArticle

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Abstract

The effects on, 3C and 109Ag chemical shifts of complexation of ethylenethiourea, thiazolidine-2-thione, 3-methylthiazolidine-2-thione, dipropylamine, pentamethylene sulfide, and 2-aminothiazole with silver nitrate in dimethyl sulfoxide solution have been examined. Although complexation is reflected via 109Ag chemical shifts of hundreds of parts per million, as compared with only a few parts per million of ligand 13C chemical shifts, both types of NMR data suggest that ligands which bind Ag(I) through sulfur form solutions containing a variety of complex species. By contrast, nitrogen ligands appear to form primarily 2:1 silver-to-ligand complexes. The 13C chemical-shift changes in the unsaturated compounds are discussed in terms of contributions from resonance forms containing different degrees of C=S and C=N bonding in the silver complexes compared to the free ligands.

Original languageEnglish
Pages (from-to)3222-3228
Number of pages7
JournalJournal of the American Chemical Society
Volume101
Issue number12
DOIs
StatePublished - Jan 1 1979
Externally publishedYes

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