171778-81-7Relevant articles and documents
Copper(I), Silver(I) and Gold(I) Complexes with the Hybrid Ligand 1-(Diphenylphosphino)-2-(2-pyridyl)ethane (ppye). Variable-temperature Nuclear Magnetic Resonance Investigations and the Crystal Structure of PF6
Zotto, Alessandro Del,Nardin, Giorgio,Rigo, Pierluigi
, p. 3343 - 3352 (2007/10/03)
Copper(I), silver(I) and gold(I) complexes with the ligand 1-(diphenylphosphino)-2-(2-pyridyl)ethane (ppye) of general formula M(ppye)2PF6 have been prepared and characterized by means of IR and multinuclear (1H, 13C and 31P) NMR spectroscopy.The copper(I) and silver(I) complexes are bis(chelate) with a tetrahedral geometry around the metal atom.On the contary, the gold(I) derivative exibits a digonal structure with monodentate P-bound ppye ligands co-ordinated to the metal centre.The complex PF6 has been characterized in the solid state by X-ray diffraction analysis.Crystal data: triclinic, space group P(*), a = 9.972(1), b = 10.299(2), c = 10.521(2) Angstroem, α = 69.90(2), β = 66.03(1), γ = 78.51(1) deg, Z = 1, R = 0.039.The gold atom, which lies on a symetry centre, is linearly co-ordinated by the P atoms of ppye (P-Au-P, 180 deg).Variable temperature NMR studies show that the (1+) species rearrange in solution by inversion at the tetrahedral metal centre.Furthermore, all three ppye derivatives undergo ligand-exchange processes.The reactions of the cations (1+) and (1+) with ppye have been investigated.
