188485-75-8Relevant academic research and scientific papers
Coordination of d10-metal cations by thiacycloalkynes
Kerton, Francesca M.,Mohmand, G. Farouq,Webb, Julian D.,Went, Michael J.
, p. 1529 - 1534 (1997)
A range of complexes has been prepared by reaction of thiacycloalkynes with Ag1, Cu1 and Hg11 cations and cationic MPR3 (M = Ag, Cu, Hg) fragments. 1H NMR studies reveal that coordination of 1,4,7-trithiacycloundec-9-yne (L1) to Ag1 results in a change of ligand conformation from exodentate in the free ligand to endodentate in the coordinated ligand implying involvement of the thioether functionalities in coordination. Participation of the alkyne linkage in coordination is less certain and a polymeric structure is suggested in the solid state. Reaction of AgSbF6 with L1 and PPh3 or PMe2Ph afforded complexes in which the silver is coordinated by a phosphine and an endodentate η3-L1. Similar studies with CuI and HgII showed a reduced tendency for thioether coordination reflected in a reduced denticity of L1. Studies with a range of dithiacycloalkynes and a tetrathiacyclodiyne show that Ag+ and Cu+ can be successfully coordinated by ligands containing a combination of two thioether donors and one alkyne.
