Insertion of CO₂-like molecules into the platinum–nitrogen bond of [Pt(PPh₃)₂(PhNO)]: the X-ray structures of [Pt{ON(Ph)C(NPh)S}(PPh₃)₂] and [Pt{ON(Ph)C(O)NPh}(PPh₃)₂]

Interactions of Organic Nitroso Compounds with Metals

“…(5) Coupling Reactions of Bound RNO. The side-on ( N,O ) bound RNO ligands in Pt(PPh 3 ) 2 (RNO) (R = Ph, t -Bu, CF 3 ) undergo a wide variety of coupling reactions with added reagents, and the range of such reactions is shown in Figure . ,−

4 Reactions of the side-on-bonded RNO groups in Pt complexes.

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Ab Initio XRPD Structure Determination of Organometallic Compounds: The Case of Pd(Phen)(C(O)N(Me)OC(O)), a Model Intermediate in the Palladium−Phenanthroline-Catalyzed Reductive Carbonylation of Aromatic Nitro Compounds

“…Although the general characteristics of this structure seems to be indisputable, another structure in which the orientation of the “CO 2 ” fragment of the metallacycle is reversed is also consistent with the reported spectroscopic data. Structure B appears a priori as more plausible based on the fact that all the structurally characterized complexes containing a metallacycle composed at least in part by the −N(R)(CO 2 )− fragment have the CO 2 carbon atom bound to nitrogen, whereas the oxygen atom binds to the metal. , A ruthenium complex containing a metallacycle composed by the “PhNCO” and “CO 2 ” fragments has also been more recently characterized by X-ray crystallography and shown to have a structure corresponding to B . To solve this ambiguity, we attempted growing crystals of the metallacyclic compound, but even after many different attempts, the complex failed to afford crystals suitable for single-crystal X-ray diffraction.…”