164920-48-3Relevant articles and documents
trans-Chloromethylbis(triphenylarsine)platinum(II)
Roodt, Andreas,Otto, Stefanus,Leipoldt, Johann G.
, p. 1105 - 1106 (1995)
The title compond, trans-chloromethylbis(triphenylarsine)platinum(II), trans-, is isomorphous and isostructural with one of the two known crystalline forms of the corresponding triphenylphosphine analogue.
Structure and reactivity relationships in methyl and hydrido complexes of platinum(II) by group 15 donor atom ligands
Otto, Stefanus,Botha, Ebrahiem,Roodt, Andreas
, p. 265 - 279 (2018/08/21)
Square-planar substitution reactions (chlorido for iodide, trans to methyl and hydrido as non-labile ligands) was kinetically investigated in chloroform solution in a series of platinum(II) trans-[PtRCl(L)2] complexes (R = Me: L = PPh3, 1; PPh2Fc, 2; P(NMe2)3, 3; AsPh3, 5; As(4-Me-Ph)3, 6; R = H: L = PPh3, 7) and cis-[PtMeCl(Ph2PFcPPh2)], 4. The reactions follow the normal associative mode of activation, but with equilibria present in all steps, with rate constants for the direct substitution pathway, k12, of (9.1 × 1.0) × 10-4, 0, (1.389 × 0.016)×10-2, (1.51 × 0.15), (2 × 4) × 10-3, (2.79 × 0.04) × 10-2 and 0 mol-1 dm3 s-1 at 298 K for 1 to 7 respectively. The corresponding second order rate constants for the solvent assisted pathway, k13′, were also determined. The activation parameters for the direct and solvent assisted pathways for 3 were determined as ΔH≠ = 60.4 × 1.4 and 53.7 × 0.3 kJ mol-1, and ΔS≠ = -78 × 4 and -142 × 1 J mol-1 K-1. A significant more than four orders-of-magnitude reactivity range was observed. Crystal structures of trans-[PtMeCl(PPh2Fc)2].2CHCl3.2H2O, trans-[PtMeCl{P(NMe2)3}2], cis-[PtMeCl(Ph2PFcPPh2)].2CHCl3 and trans-[PtHCl(PPh3)2].CH3OH are reported.
