The chemistry of pyridinethiols and related ligands, Part 9. Synthesis, spectroscopy and crystal structure of sulphur bridged dimeric [{eta(3)-(O-mu-S)-1-oxopyridine-2-thione}(triphenylphosphine)silver(I)]
Ts. Lobana et al., The chemistry of pyridinethiols and related ligands, Part 9. Synthesis, spectroscopy and crystal structure of sulphur bridged dimeric [{eta(3)-(O-mu-S)-1-oxopyridine-2-thione}(triphenylphosphine)silver(I)], TRANSIT MET, 24(2), 1999, pp. 202-205
Reaction of 1-hydroxypyridine-2-thione (HpyOS) in CHCl3 with Ag2CO3 suspend
ed in CHCl3 under magnetic stirring followed by addition of PPh3 yields a p
roduct of stoichiometry: Ag(pyOS)(PPh3). The compound adopts a dimeric stru
cture [Ag(pyOS)(PPh3)](2) (1) where each Ag atom acquires a distorted tetra
hedral geometry by co-ordinating to one oxygen, two sulphur and one phospho
rus atoms. The Ag2S2 core forms a parallelogram [Ag-S 2.507(1), 2.822(1)Ang
strom] with Ag-S-Ag and S-Ag-S angles of 74.8(1) and 105.2(1)degrees, respe
ctively.