Synthesis and Structure of Cyclometallated Palladium Binuclear Complexes with Bridging Carboxylate Ligandsстатья
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Аннотация:New bimetallic pivalate Pd(II) complex [PdNi(OOCtBu)4(HOOCtBu)] (I) has been synthesized from [PdNi(OOCMe)4] and used as a starting reagent in a further complexation reaction. Cyclometallated binuclear carboxylate palladium complexes [(OOCMe)Pd(2‑phpy)]2 (II) and [(OOCtBu)Pd(2‑phpy)]2 (III) have been obtained by the reaction between heterometallic compounds [Pd(OOCR)4Ni] (R = Me, tBu) and 2-phenylpyridine (2-phpy). The reaction proceeds at room temperature under mild conditions. All the compounds obtained have been isolated in crystalline form from a medium of nonpolar solvents, characterized by single-crystal X-ray diffraction analysis, and deposited at the Cambridge Crystallographic Data Center (CCDC nos. 2256606 for I, 2247942 for II, and 2247943 for III).