Acta Cryst. (2010). E66, m453-m454  [ doi:10.1107/S1600536810010263 ]

Di--chlorido-bis{[-1,8-bis(diisopropylphosphanyl)-9,10-dihydro-9,10-ethanoanthracene-²P:P']--chlorido--methylidene-dipalladium(II)} tetrahydrofuran pentasolvate

T. Schnetz, F. Rominger and P. Hofmann

Abstract: The title compound, [Pd₄(CH₂)₂Cl₄(C₂₈H₄₀P₂)₂]·5C₄H₈O, possesses a tetranuclear palladium core with four bridging chlorido ligands and two bridging methylene units, as well as two bridging anthracene-based bis-phosphine ligands. This tetranuclear complex can be considered as being composed of two -chlorido-bridged LPd₂ units. The structural motif of these LPd₂ units shows two doubly bridged palladium centers between the P atoms of the bis-phosphine ligand. One of these bridges is a -Cl atom, the other a -methylene group. The coordination environment around each palladium center is essentially square planar. We ascribe the oxidation state +II to the palladium centers and do not assume Pd-Pd bonds [shortest distances 2.8110 (5) and 2.8109 (6) Å]. Co-crystallized with the palladium complex we found five non-coordinating tetrahydrofuran solvent molecules, one of which is disordered over two positions in a 0.429 (9):0.571 (8) ratio.

Online 27 March 2010

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