A triclinic polymorph of bis­(μ-di-tert-butyl­phosphanido)bis­[(di-tert-butyl­phosphane)palladium(I)]

A new polymorph of the title compound, [Pd₂(C₈H₁₈P)₂(C₈H₁₉P)₂], has been found. It belongs to the triclinic P-1 space group, whereas the known form [Leoni, Sommovigo, Pasquali, Sabatino & Braga (1992), J. Organo­met. Chem. 423, 263–270] crystallizes in the monoclinic C2/c space group. The title compound features a dinuclear palladium complex with a planar central Pd₂(μ-P)₂ core (r.m.s. deviation = 0.003 Å). The Pd—Pd distance of 2.5988 (5) Å is within the range of a Pd^I—Pd^I bond. The mol­ecules of both polymorphs are located on a crystallographic centre of inversion. The mol­ecular conformations of the two polymorphs are essentially identical. The crystal packing patterns, on the other hand, are slightly different.