Received 22 December 2011
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-HCl interactions consolidate the crystal packing.
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).
Data collection: APEX2 (Bruker, 2005); cell refinement: SAINT (Bruker, 2002); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: JJ2116 ).
HBS acknowledges the DST, New Delhi, for financial support. TC acknowledges the CSIR, New Delhi, for a fellowship. RJB acknowledges the NSF-MRI program (grant No. CHE-0619278) for funds to purchase the diffractometer.
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