Reaction of Ketenylidenetriphenylphosphorane (Ph3PCCO) with Platinum(II) and Palladium(II) Complexes. Synthesis, Characterization, and Molecular Structure of [Pt(η3-C3H5){η1-C(PPh3)(CO)}(PPh3)]BF4

Lewis acid base chemistry of Bestmann's ylide, Ph3PCCO, and its bulkier analogue, (cyclohexyl)3PCCO

The phosphoranylideneketenes R₃PCCO (R = phenyl, cyclohexyl) and their Lewis acid base adducts were synthesized and structurally as well as spectroscopically characterized.

Platinum organometallic compounds: classification and analysis of crystallographic and structural data of monomeric five and higher coordinated

Four hundred and twenty monomeric organoplatinum compounds, in which platinum atoms are five- and higher coordinated, are analyzed. The platinum atoms are found in the oxidation states +2, +3 and +4. The Pt(II) compounds by far prevail. There are wide varieties of the inner coordination spheres about the platinum centers. The Pt(II) compounds are five-coordinated (trigonal bipyramidal and square pyramidal), six-coordinated (different degrees of distortion), seven-coordinated (pentagonal bipyramidal, piano stool) and sandwiched (PtC10). The Pt(III) compound is square-planar. The Pt(IV) compounds are six- and eight-coordinated. There are several relationships between the Pt-L bond distances, covalent radii of the coordinated atom/ligand, and metallocycles, which are discussed. The trans-effect plays an important role in the inner coordination spheres about the Pt centers, especially on the Pt-L bond distances.