Bis{μ-2-[(dimethyl­amino)­meth­yl]benzene­seleno­lato}bis­[chloridopalladium(II)] dichloromethane hemisolvate

The asymmetric unit of the title compound, [Pd₂(C₉H₁₂NSe)₂Cl₂]·0.5CH₂Cl₂, contains two half-mol­ecules, each lying on a twofold axis; each mol­ecule is chiral and of the same enanti­omer. This is only possible as the mol­ecule has a hinged cis arrangement about the Pd²⁺ coordination spheres. For this hinged dimeric structure, the angles between the two coordination planes in each mol­ecule are 15.02 (5) and 14.91 (5)°. This hinged cis arragement also allows the two mol­ecules to form pairs linked by secondary inter­actions between the Pd and Se atoms [3.4307 (9) and 3.4317 (9) Å] of adjoining mol­ecules, leading to an overall tetra­meric structure. During the refinement stages, it was noticed that there were dichloromethane solvent mol­ecules present disordered about a twofold axis. After unsuccessful attempts were made to model this, they were removed using SQUEEZE.

Bis{μ-2-[(dimethyl­amino)­meth­yl]benzene­tellurolato}bis­[chlorido­palladium(II)] dichloro­methane hemisolvate

The asymmetric unit of the title compound, [Pd₂(C₉H₁₂NTe)₂Cl₂]·0.5CH₂Cl₂, contains two half-mol­ecules, each lying on a twofold rotation axis; each mol­ecule is chiral and of the same enanti­omer. This is only possible as the mol­ecule has a hinged cis arrangement about the Pd²⁺ coordination spheres. For this hinged dimeric structure, the angles between the two coordination planes in each mol­ecule are 21.59 (4) and 22.10 (4)°. This hinged cis arrangement also allows the two mol­ecules to form pairs linked by secondary inter­actions between the Pd and Te atoms of an adjoining mol­ecule, leading to a tetra­meric overall structure. C—H...Cl inter­actions consolidate the crystal packing.