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

Date Published: February 01, 2012

Publisher: International Union of Crystallography

Author(s): Ray J. Butcher, Tapash Chakravorty, Harkesh B. Singh.


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.

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For related structures of bridged dimers of palladium mediated by Se, see: Brown & Corrigan (2004 ▶); Chakraborty et al. (2011 ▶); Dey et al. (2006 ▶); Ford et al. (2004 ▶); Kaur et al. (2009 ▶); Morley et al. (2006 ▶); Nakata et al. (2009 ▶); Oilunkaniemi et al. (1999 ▶, 2001 ▶). For Se/Te-bridged Pd dimeric structures which exhibit either a hinged or cis arrangement of ligands about the bridging plane, see: Kaur et al. (2009 ▶); Oilunkaniemi et al. (2000 ▶); Chakravorty et al. (2012 ▶). For the synthesis of the title compound, see: Chakraborty et al. (2011) ▶.