Abstract
First cyclometallated PdII diselenophosphinate, namely [(dmba)Pd(Se2PPh2)] (dmba = PhCH2NMe2), has been synthesized in 72% yield by reaction of chloro-bridged dimer, [(dmba)Pd(μ-Cl)]2 (dmba = PhCH2NMe2), with sodium diselenophosphinate, Na[Se2PPh2]. This complex has been characterized by X-ray crystallography (XRD), NMR (1H and 31P), FT-IR, UV–Vis and ESI-MS techniques. The XRD analysis reveals that the Pd atom has a square-planar geometry defined by C and N atoms of the palladacycle as well as by two Se atoms of the chelating [Se2PPh2] ligand. The DFT computations have been performed to explore an electronic structure of the new complex and to explain experimental FT-IR frequencies. Besides, decomposition of the prepared complex has been studied by TGA/DSC.
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