Binary Palladium Carboxylates with Electron-Donatingand Electron-Withdrawing Substituents in the Carboxylate Ligand:Synthesis and Structural Studies. The Crystal Structuresof Pd3(μ-CH2ClCO2)6 · CH2Cl2, Pd3(μ-C6H_(11)CO2)6,and Pd3(μ-CMe3CO2)6

摘要

Replacement of the acetate ligands in Pd3(μ-MeCO2)6 in benzene gave complexes of the general formula Pd3(μ-RCO2)6 (R = CF3, CCl3, CH2Cl, Me, cyclo-C6H_(11), and CMe3). The structures of the complexes were determined using IR spectroscopy, ESI mass spectrometry, and X-ray diffraction. It was found that the complexes contain a trinuclear Pd framework and that their spectroscopic and structural parameters depend on the donor-acceptor properties of the substituent in the carboxylate ligand.