25. "Synthesis and Structure of Platinum and Palladium Complexes of Dimesitylphosphine," Elizabeth M. Pelczar, Emily A. Nytko, Michael A. Zhuravel, Jeremy M. Smith, David S. Glueck, Roger Sommer, Christopher D. Incarvito, and Arnold L. Rheingold, Polyhedron 2002, 21, 2409-2419.

Abstract. Treatment of Pd(tmeda)Me₂ with dimesitylphosphine (PMes₂H, L) gave cis-PdL₂Me₂ (1). Trans-ML₂Cl₂ (M = Pd (2), Pt (3)) were prepared from a variety of starting materials. The reaction of Pt(cod)Cl₂ with L gave cis-PtL₂Cl₂ (4), which reacted with PPh₃ to yield cis-Pt(L)(PPh₃)Cl₂ (5). Cis-PtL₂(Me)(Cl) (6) was prepared from L and Pt(cod)(Me)(Cl), while reaction of L with Pt(cod)(Et)(I) gave cis-PtL₂(Et)(I) (7), which isomerized to trans-PtL₂(Et)(I) (8). The phosphine-borane PMes₂H€BH₃ (9) was made by reaction of L with BH₃€SMe₂. Crystal structures of 2€2CH₂Cl₂, 4€CH₂Cl₂, 5€2CH₂Cl₂, 6, and 9 provided information on the steric bulk of L (cone angle ca. 149°). Restricted rotation about the Pt-P and P-C bonds in complexes 4-8 was studied by variable temperature NMR spectroscopy.