Received 16 November 2012
aDepartment of Chemistry, Howard University, 525 College Street NW, Washington, DC 20059, USA,bDepartment of Pure & Applied Chemistry, M.D.S. University, Ajmer 305 009, India, and cDepartment of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey
Correspondence e-mail: firstname.lastname@example.org
In the title compound, [Pb(C14H14O2PS2)2]n, the metal atom is surrounded by two O,O'-bis(2-methylphenyl) dithiophosphate ligands bonding through the S-donor atoms. Three of the Pb-S bond lengths are are close to each other at 2.7710 (18), 2.8104 (16) and 2.8205 (16) Å, while the fourth Pb-S bond is elongated at 3.0910 (18) Å and reflects the fact that this atom is involved in intermolecular bridging to an adjacent PbII atom [Pb-S = 3.145 (2) Å]. The bond angles demonstrate that the PbII atom contains a stereochemically active lone pair with a distorted octahedral geometry about the PbII atom. This distortion is shown by the S-Pb-S bite angles of 73.63 (4) and 69.50 (4)°, while the remaining S-Pb-S angles range from 81.03 (5) to 143.66 (5)°. One of the benzene rings shows positional disorder over two orientations with occupancy factors of 0.747 (11) and 0.253 (11).
For applications of related O,O'-dialkyl derivatives of phosphorus(V) dithioacids, see: Lawton & Kokotailo (1969, 1972); Ito (1972); Harrison et al. (1988). For general and convenient methods for the preparation of dithiophosphato salt derivatives and their metal derivatives, see: Bajia et al. (2009); Maheshwari et al. (2009); Lawton & Kokotailo (1969, 1972); Ito (1972); Harrison et al. (1988); Van Zyl & Fackler, (2000); Van Zyl (2010). For VSEPR theory, see: Gillespie & Nyholm (1957). For stereochemically active lone pairs in Pb2+ complexes, see: Davidovich et al. (2010); Ito & Maeda (2004); Larsson et al. (2004); Lawton & Kokotailo (1972).
Data collection: CrysAlis PRO (Agilent, 2011); cell refinement: CrysAlis PRO; data reduction: CrysAlis PRO; 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: BT6859 ).
RJB acknowledges the NSF-MRI program (grant No. CHE-0619278) for funds to purchase the diffractometer.
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