Received 19 September 2012
In the title organometallic polymer, [HgCl2(C26H20NO3P)]n, the monodentate 1-(3-nitrophenyl)-2-(triphenylphosphoranylidene)ethanone ligand is coordinated to the HgII atom through the methine C atom. The HgII atom is four-coordinated in a distorted tetrahedral geometry by one terminal Cl atom, two bridging Cl atoms, and one C atom from the ylidic ligand, resulting in a polymeric chain parallel to . The terminal Cl atom is more strongly bound to the HgII ion [2.3916 (9) Å] than the bridging Cl atoms. The bridge is asymmetric, as indicated by the two different Hg-Cl(bridging) bond lengths [2.5840 (8) and 2.7876 (8) Å]. Intramolecular C-HO and weak C-HCl contacts stabilize the polymeric chain. In the crystal, adjacent chains interact via C-HO hydrogen bonds.
For an example of a one-dimensional polymeric HgII complex, see: Ebrahim et al. (2007). For mono- and dimeric complexes of HgII containing ylide ligands, see: Sabounchei et al. (2007, 2008, 2009, 2011); Sabounchei, Jodaian et al. (2010); Sabounchei, Samiee et al. (2010).
Data collection: SMART (Bruker, 2002); cell refinement: SAINT (Bruker, 2008); 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: BH2457 ).
The authors are grateful to Urmia University for financial support and to Dr Amitava Choudhruy (Missouri University of Science and Technology, USA) for his assistance with the X-ray crystallography.
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