title: catena-Poly[[chlorido[1-(3-nitro-phen-yl)-2-(triphenyl-phospho-ranyl-idene)ethanone-κC(2)]mercury(II)]-μ-chlorido].
abstract: In the title organometallic polymer, [HgCl(2)(C(26)H(20)NO(3)P)](n), the monodentate 1-(3-nitro-phen-yl)-2-(triphenyl-phospho-ran-yl--idene)ethanone ligand is coordinated to the Hg(II) atom through the methine C atom. The Hg(II) atom is four-coordinated in a distorted tetra-hedral 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 [010]. The terminal Cl atom is more strongly bound to the Hg(II) 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]. Intra-molecular C-H⋯O and weak C-H⋯Cl contacts stabilize the polymeric chain. In the crystal, adjacent chains inter-act via C-H⋯O hydrogen bonds.
authors.affiliation: Department of Chemistry, Faculty of Science, Urmia University, PO Box 57153-165, Urmia,  Iran.
authors.forename: Alireza
authors.initials: A
authors.lastname: Dadrass
authors.forename: Jabbar
authors.initials: J
authors.lastname: Khalafy
authors.forename: Hojjatollah
authors.initials: H
authors.lastname: Rahchamani
authors.forename: Hassan
authors.initials: H
authors.lastname: Nasri Koureh
authors.forename: Hooman
authors.initials: H
authors.lastname: Yaghoobnejad Asl