Experimental and Theoretical Investigations for Revealing the Influence of Cyclometalated Ligand Type on Protonolysis of Pt-Carbon Sites.

This study investigates possible pathways arising from the reaction of anionic K[Pt(C^N)(-MeCH)(CN)] complexes, C^N = 2-phenylpyridinate (ppy) and 7,8-benzo[h]quinolate (bzq), with trifluoroacetic acid (TFA), which has been employed in both experimental and computational approaches. Experimental studies clarify that the products of the protonolysis reaction can vary in the K[Pt(C^N)(-MeCH)(CN)] complex depending on the type of the cyclometalated ligand. In the cyclometalated complex with ppy, only one product was observed, resulting from the cleavage of the Pt-C bond of the cyclometalated ligand.

Ladder-like heteropolynuclear assemblies cyanido bridges and platinum(II)-thallium(I) bonds: structural and photophysical properties.

We describe the mononuclear anionic cyanido-pentafluorophenyl complexes, (NBu)[Pt(C^N)(CF)(CN)] [C^N = 7,8-benzoquinolate (bzq) 1, 2-(2,4-difluorophenyl)pyridinate (dfppy) 2] and the heteropolynuclear derivatives [{Pt(C^N)(CF)(CN)}Tl] (C^N = bzq 3, dfppy 4). These complexes were synthesized a two-step modular synthesis by reaction of the corresponding potassium salts K[Pt(C^N)(CF)(CN)], prepared from [Pt(C^N)(CF)(DMSO)] and KCN in acetone/HO, with TlPF. The structures of {[Pt(bzq)(CF)(CN)Tl]·THF} (3·THF) and [{Pt(dfppy)(CF)(CN)}Tl]·dioxane [4]4·dioxane, determined by X-ray crystallography, confirm the presence of Pt(II)-Tl(I) bonds [2.

Luminescent Anionic Cyclometalated Organoplatinum (II) Complexes with Terminal and Bridging Cyanide Ligand: Structural and Photophysical Properties.

We present the synthesis and characterization of two series of mononuclear heteroleptic anionic cycloplatinated(II) complexes featuring terminal cyanide ligand Q[Pt(C^N)(-MeCH)(CN)] [C^N = benzoquinolate (bzq), Q = K and NBu ; 2-phenylpyridinate (ppy), Q = K and NBu and 2-(2,4- difluorophenyl)pyridinate (dfppy), Q = K and NBu ] and a series of symmetrical binuclear complexes (NBu)[Pt(C^N)(-MeCH)(μ-CN)] (C^N = bzq , ppy , dfppy ). Compounds , , and - were further determined by single-crystal X-ray diffraction. There are no apparent intermolecular Pt···Pt interactions owing to the presence of bulky NBu counterion.