Study of the stereochemistry of silver(I) bis(pyridine-2-carbaldehyde-imine) triflate complexes in solution: application of INEPT109Ag and 1H-{109Ag}NMR

Abstract

[Ag}I{L{2}](O{3}SCF{3}) complexes have been obtained from the 21 reaction of pyridine-2-carbaldehyde-imine (L) with AgO{3}SCF{3}. Inept }1{}0{}9{Ag and }1{H-{}1{}0{}9{Ag} NMR studies of [Ag{(S)(6-Me-2-C{5}H{3}N)C(H)=NC(H)PhMe}{2}](O{3}SCF{3}) reveal that the tetrahedral Ag}I{L{2} cation of this complex exists below 235 K in two diastereoisomeric forms with a strong preference for one of the molecular configurations (probably the A(S)(S)).