Structural Chemistry of the Platinum Group Metals: the Palladacyclopentane Complex (Butane-1,4-diyl)(N,N,N',N'-tetramethyl-ethylenediamine)palladium(II)

A single-crystal X-ray structure determination of the reagent (butane-1.4-diyl)(N,N,N',N'- tetramethylethylenediamine)palladium(II) has shown that crystals are orthorhombic, Pbca, a 15.832(3), b 14.128(9), c 11.451(3) A, Z 8. The square planar complex has a puckered PdCH2CH2CH2CH2 palladacyclopentane ring and a puckered PdNMe2CH2CH2NMe2 ring in which the outer carbon atoms deviate by ca. +/- 0.35 A from the 'PdC2N2' mean plane.