Lewis Base Adducts of Silver(I) p-Toluenesulfonate. IV. The Preparation and Crystal Structures of the Complexes of Silver(I) p-Toluenesulfonate with 2,6-Diaminopyridine, Quinolin-8-ol, Hexane-1,6-diamine, and the Adduct of Hexane-1,6-diamine

Abstract

The reaction of silver(I) p-toluenesulfonate{Ag(pts} with a series of nitrogen bases has provided furtherexamples of adducts including one {with 2,6-diaminopyridine (dap),[{Ag(pts)} (dap)]_n (1)} whichis a variant of the known polymeric adduct type[{Ag(pts)}(L)_m]_n,together with a second previously unreported complex type in which the ptsligand is displaced but remains as a counter anion[Ag(L)_m⁺].(pts^-) [withquinolin-8-ol (oxine), [Ag(oxine)₂⁺].(pts^-) (2);hexane-1,6-diamine (dah),[Ag₂(dah)₃²⁺]_n.2_n(pts^-)(3)]. Compound (1) is polymeric and is based on four-coordinate distortedtetrahedral AgN₂O₂ centres[Ag{N, 2·249, 2·326(2) Å; Ag−O,2·491, 2 ·554(2) Å]. Compound (2) comprises discreteAgN₂O₂ complex units in which theuncharged oxine ligands are asymmetric bidentate [Ag−N,2·208−2·222(5) Å; Ag−O,2·563−2·597(5) Å]. Compound (3) hasthree-coordinate silver centres with the metal coordinated to two dah ligandslinearly in a polymeric chain [Ag−N, 2·186, 2·191(4)Å], with a third, longer interaction [Ag−N,2·494(4) Å] completing a T-shaped coordination. In addition,the structure of the adduct of AgClO₄ withhexane-1,6-diamine{[Ag(dah)⁺]_n·n(ClO₄⁻)}(4) has been determined, and is polymeric, comprising classicalcentrosymmetric linear AgN₂ coordination[Ag−N, 2·121(3) Å] with only weakhydrogen-bonding interactions to the perchlorate