Insertion of CO and Strained Olefins into Organometallic (Ferrocenylmethyl)phosphane Palladium Complexes

Abstract

The reaction of [Pd(cod)

Synthesis and Reactivity of the Unsaturated Trinuclear Phosphanido Complex [(C6F5)2Pt(μ-PPh2)2Pt(μ-PPh2)2Pt(PPh3)]

“…We are engaged in the synthesis of polynuclear platinum and/or palladium phosphanido complexes, and the judicious choice of the starting materials and reaction processes has allowed the rational synthesis of phosphanido complexes of different nuclearity with or without a metal–metal bond, with the latter depending on the total valence electron count (VEC). − Typically, polynuclear platinum or palladium complexes that contain 16 electrons per metal center, i.e., a VEC of 16 n ( n = number of metal centers), are considered to be saturated and do not require the presence of any metal–metal bond. For instance, in binuclear phosphanido complexes studied by us, the elimination of a pair of electrons, either via one-electron oxidation of each metal center or by elimination of one ligand, results in both cases in the formation of a Pt–Pt bond. ,,, When a ligand is eliminated in the resulting binuclear complex, one of the Pt centers is only three-coordinated.…”

Kinetics, Mechanism and Theoretical Studies of Norbornene-Ethylene Alternating Copolymerization Catalyzed by Organopalladium(II) Complexes Bearing Hemilabile α-Amino–pyridine

“…The facts indicate that in such low temperatures, no T -to- C isomerization occurs, and the reaction of norbornene-insertion only takes place on the C -isomer. This is an unprecedented example, of which one geometrical isomer in square-planar configuration shows substantially more facile reactivity than another toward the fundamental reactions of norbornene insertion [ 85 , 95 ].…”