Crystal structures of di­iodido­bis­[(1S,5S)-4-mesityl-1,2,8,8-tetra­methyl-2,4-di­aza­bicyclo­[3.2.1]octan-3-yl­idene-κC (3)]palladium(IV) and di­chlorido­[(1S,5S)-4-mesityl-1,2,8,8-tetra­methyl-2,4-di­aza­bicyclo[3.2.1]octan-3-yl­idene-κC (3)](tri­phenyl­phosphane-κP)palladium(IV)

The mol­ecular structures of the chiral title compounds, [Pd(C(19)H(28)N(2))(2)I(2)], (I), and [Pd(C(19)H(28)N(2))Cl(2)(C(18)H(15)P)], (II), show a distorted square-planar coordination around the Pd(II) atoms with two halogenide (Hal) ligands each and two N-heterocyclic carbene (NHC) ligands in (I) or one NHC and one tri­phenyl­phosphane ligand in (II). The deviations of the Pd(II) atoms from the L (2)Hal(2) best plane (L = NHC or tri­phenyl­phosphane ligand) are 0.206 (1) Å for (I) and 0.052 (1) Å for (II). The crystal packings exhibit inter­molecular C—H⋯Hal hydrogen bonds.