285547-28-6Relevant articles and documents
Pyridine-2-thionate as a versatile ligand in Pd(ii) and Pt(ii) chemistry: The presence of three different co-ordination modes in [Pd2(μ 2-S,N-C5H4SN)(μ2- κ2S-C5H4SN)(μ2-dppm) (S-C5H4SN)2]
Mendia, Aranzazu,Cerrada, Elena,Arnaiz, Francisco J.,Laguna, Mariano
, p. 609 - 616 (2007/10/03)
Reactions of [MCl2(L-L)], M = Pt, Pd; L-L = bis(diphenylphosphino)methane (dppm) or bis(diphenylphosphino)ethane (dppe), with NaC5H4SN in a 1: 2 molar ratio lead to mononuclear species [M(S-C5H4SN)2(P-P)], M = Pt; L-L = dppm (1) or dppe (2) and M = Pd; L-L = dppe (3), as well as to the dinuclear [Pd2(μ2-S,N-C5H4SN) (μ2-κ2S-C5H4SN) (μ2-dppm)(S-C5H4SN)2] (4). In contrast, reaction of [MCl2(dppm)] with NaC5H 4SN in a 1: 1 molar ratio leads to [Pd2(μ2- S,N-C5H4SN)3(μ2-dppm)]Cl (5) and trans-[Pt(S-C5H4SN)2(PPh2Me) 2] (6) respectively. The latter is formed in low yield by cleavage of the dppm ligand. The dinuclear derivatives 4 and 5 present an A-frame and lantern structure, respectively. The former showing three different co-ordination modes in the same molecule with a short Pd-Pd distance of 2.9583 (9) A and the latter with three bridging S,N thionate ligands showing a shorter Pd-Pd distance of 2.7291 (13) A. Both distances could be imposed by the bridging ligands or point to some sort of metal-metal interaction. The Royal Society of Chemistry 2006.
