Synthesis and properties of the tetranuclear palladium chalcogenolato-acetato complex [Pd(SePh)(OOCCH3)]4 with Pd–Pd bonding: an experimental and theoretical study

Abstract

The first tetranuclear palladium selenophenolate complex has been synthesized by reaction of palladium acetate with (PhSe)₃Sn-(CH₂)₄-Sn(SePh)₃ (1) in dichloromethane. 1 represents a rectangular arrangement of the four Pd atoms bridged by four μ-bridging SePh and OAc groups each and is thermolyzed into a novel phase Pd₁₀Se₇. The alternating distribution of acetate or selenophenolate bridges over the Pd⋯Pd edges, that allows for the formation of two Pd–Pd bonds, was rationalized by quantum chemical investigations.