Crystal structure of trans-chlorohydridobis(triethylphosphine)palladium

Abstract

The title compound crystallises in a monoclinic cell, space group P2₁/c, with a= 9·06, b= 13·83, c= 14·48 Å, β= 92·9°, Z= 4. The structure was solved by the heavy-atom method and refined by the method of least-squares to R 0·072 for 1807 observed reflections. The two phosphorus atoms, which are mutually trans, and the chlorine atom are situated at three of the corners of a distorted square, centred on the palladium, with the fourth site believed to be occupied by hydrogen. The Pd–Cl bond length (2·427 Å) is long compared with that (2·299 Å) observed in the PdCl₄^2– ion, indicating the strong trans-influence of hydrogen, but is the same as the Pt–Cl distance (2·422 Å) in (Ph₂EtP)₂Pt(H)Cl.