112793-16-5Relevant articles and documents
Platinum(II) phosphine complexes containing 1,3,5-triazine and related ligands
Kaufmann, Werner,Venanzi, Luigi M.,Albinati, Alberto
, p. 1178 - 1187 (2008/10/08)
Solution studies of the complexes {PtCl2(PEt3)}n-1,3,5-triazine (n = 1-3), {PtCl2(PR3)}n-pyrimidine (R = Et, n-Bu; n = 1, 2), and trans-PtCl2L(PR3) (L = pyridine, 4-chloropyridine; R = Et, n-Bu) are reported. It is shown that (a) coordination of the PtCl2(PR3) fragment does not greatly weaken the donor capacity of the still-uncoordinated nitrogen atom of the heterocycle and (b) these complexes are dynamic in solution and the degree of lability increases in the order pyridine 2(PEt3)}3-1,3,5-triazine was determined. The crystals are triclinic and belong to the space group P1 with unit cell dimensions a = 13.020 (3) ?, b = 13.098 (2) ?, c = 13.251 (2) ?, α = 62.75 (1)°, β = 65.95 (2)°, γ = 75.49 (2)°, V = 1828.8 (1) ?3, and Z = 2. The structure was refined to R = 0.036. Each platinum atom shows normal square-planar geometry with bonding parameters that are typical for compounds of the type trans-PtCl2(N-ligand)(PR3). There does not appear to be any significant change in the triazine structural parameters upon coordination.