Probing lead(II) bonding environments in 4-substituted pyridine adducts of [(2,6-[Me.sub.2][C.sub.6][H.sub.3]S).sub.2]Pb: an X-ray structural and solid-state [207.sup.Pb] NMR study

A study was conducted to determine the effects of varying the [sigma]-electron donor ability of pyridine Lewis-base ligands on the coordination environment of lead(II) in bis-thiolate complexes. The results indicate that lead-nitrogen bond distances is reduced when [sigma]-electron donor ability of the 4-substituted pyridine ligand is increased.