1D and 2D Nuclear magnetic resonance of new silver(I) complexes with achiral and chiral bases as ligands: Crystal structure of [Ag{(S)-(6-CH3)C5H3N-CHN-C*H(α-CH3)C6H5}(PPh3)2](O3SCF3)

Treatment of equimolar amounts of substituted aniline or amine with substituted benzaldehyde leads to the corresponding achiral or chiral Schiff bases (L). The reaction of the bases with [Ag(O3SCF3)(PPh3)] leads to the preparation of three or four coordinated cationic complexes, [Ag(k1-L)(PPh3)n]+ (n = 1 or 2) which have been characterized by IR, 1D and 2D NMR spectroscopy. The crystal structure of [Ag{(S)-(6-CH3)C5H3N-CHN-C*H(α-CH3)C6H5}(PPh3)2](O3SCF3) is reported.

Graphical abstractThe reaction of some achiral or chiral Schiff bases with [Ag(O3SCF3)(PPh3)] leads to the preparation of cationic silver(I) complexes, [Ag(k1-L)(PPh3)n]+ (n = 1 or 2). The crystal structure of [Ag{(S)-(6-CH3)C5H3N-CHN-C*H(α-CH3)C6H5}(PPh3)2](O3SCF3) is described.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► We describe the synthesis of new cationic silver(I) complexes with mono and bidentate Schiff-bases. ► The new complexes are exhaustive characterized by 13C, 31P or 19F and two-dimensional NMR experiments. ► The crystal structure of [Ag{(S)-(6-CH3)C5H3N-CHN-C*H(α-CH3)C6H5}(PPh3)2](O3SCF3) confirms the tetracoordination around the silver center.