264197-47-9Relevant academic research and scientific papers
The gem-dialkyl effect as a test for preliminary diphosphine chelate opening in a reductive elimination reaction
Arthur, Kathryn L.,Wang, Qi L.,Bregel, Dawn M.,Smythe, Nicole A.,O'Neill, Bridget A.,Goldberg, Karen I.,Moloy, Kenneth G.
, p. 4624 - 4628 (2008/10/09)
A significant kinetic effect of the placement of gem-dialkyl substituents in the carbon backbone of a bidentate phosphine ligand on a reductive elimination reaction involving chelate opening as a preliminary step has been documented. This observation conf
Synthetic, Structural, and Solution Calorimetric Studies of Pt(CH3)2(PP) Complexes
Smith Jr., Dale C.,Haar, Christopher M.,Stevens, Edwin D.,Nolan, Steven P.,Marshall, William J.,Moloy, Kenneth G.
, p. 1427 - 1433 (2008/10/08)
Reaction enthalpies of the complex (COD)PtMe2 (1; COD = η4-1,5-cyclooctadiene) with an extensive series of bidentate phosphines (dpype, dppf, diop, dppe, dppb, dppp, dpmcb, depe, dmpe, dcpce) have been measured by solution calorimetry. The relative stabilities of the resulting complexes PtMe2(PP) are determined by a combination of the donor and bite angle/ steric properties of the bidentate phosphine ligand. In general, good a donor ligands with small bite angles result in more thermodynamically stable complexes. Additionally, the molecular structures of 1, Pt(Me)2(pype) (2), Pt(Me)2(dppf) (3), Pt(Me)2(diop) (4), Pt(Me)2-(dppe) (6), Pt(Me)2(dpmcb) (9), and Pt(Me)2(Et2dppp) (13) have been determined by single-crystal X-ray diffraction. No correlation between the thermochemical results and the structural parameters, e.g, M-P distance (as observed in other systems), is apparent in this class of complexes.
