catena-Poly[[trimethyltin(IV)]-l-2- methylbenzoato-j 2 O:O 0 ] Muhammad Danish, a * Iram Saleem, a Nazir Ahmad, a Wojciech Starosta b and Janusz Leciejewicz b a Department of Chemistry, University of Sargodha, Sargodha 40100, Pakistan, and b Institute of Nuclear Chemistry and Technology, ul. Dorodna 16, 03-195 Warszawa, Poland Correspondence e-mail: drdanish62@gmail.com Received 26 November 2009; accepted 30 November 2009 Key indicators: single-crystal X-ray study; T = 293 K; mean (C–C) = 0.009 A ˚ ; R factor = 0.039; wR factor = 0.118; data-to-parameter ratio = 24.6. The polymeric structure of the title compound, [Sn(CH 3 ) 3 - (C 8 H 7 O 2 )] n , is composed of zigzag chains in which the tin(IV) atoms, coordinated by three methyl groups, are bridged by toluene-2-carboxylate ligands via their O atoms. A slightly distorted trigonal-bipyramidal SnC 3 O 2 coordination geometry arises for the metal, with the O atoms in the axial sites. Weak C—HO hydrogen bonds help to stabilize the packing. Related literature For biological activity of tin complexes with carboxylate ligands, see, for example: Shahzadi et al. (2007). For a related structure, see: Danish et al. (2009). For a review of the struc- tural chemistry of tin(IV) complexes with carboxylate ligands, see: Tiekink (1991). Experimental Crystal data [Sn(CH 3 ) 3 (C 8 H 7 O 2 )] M r = 298.93 Monoclinic, P2 1 =n a = 10.618 (2) A ˚ b = 10.046 (2) A ˚ c = 12.833 (3) A ˚ = 112.39 (3) V = 1265.7 (4) A ˚ 3 Z =4 Mo K radiation = 2.00 mm 1 T = 293 K 0.42 0.12 0.09 mm Data collection Kuma KM-4 four circle diffractometer Absorption correction: analytical (CrysAlis RED; Oxford Diffraction, 2008) T min = 0.838, T max = 0.892 3389 measured reflections 3226 independent reflections 2090 reflections with I >2(I) R int = 0.022 3 standard reflections every 200 reflections intensity decay: 6.4% Refinement R[F 2 >2(F 2 )] = 0.039 wR(F 2 ) = 0.118 S = 1.04 3226 reflections 131 parameters H-atom parameters constrained max = 1.37 e A ˚ 3 min = 1.69 e A ˚ 3 Table 1 Selected bond lengths (A ˚ ). Sn1—C11 2.108 (6) Sn1—C12 2.112 (5) Sn1—C13 2.116 (5) Sn1—O2 i 2.200 (3) Sn1—O1 2.413 (3) Symmetry code: (i) x þ 3 2 ; y 1 2 ; z þ 1 2 . Table 2 Hydrogen-bond geometry (A ˚ , ). D—HA D—H HA DA D—HA C13—H13CO1 i 0.96 2.66 3.271 (7) 122 C4—H4O2 ii 0.93 2.74 3.502 (6) 140 Symmetry codes: (i) x þ 3 2 ; y 1 2 ; z þ 1 2 ; (ii) x þ 5 2 ; y 1 2 ; z þ 1 2 . Data collection: KM-4 Software (Kuma, 1996); cell refinement: KM-4 Software; data reduction: DATAPROC (Kuma, 2001); 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: SHELXL97. Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: HB5258). References Danish, M., Tahir, M. N., Ahmad, N., Raza, A. R. & Ibrahim, M. (2009). Acta Cryst. E65, m609–m610. Kuma (1996). KM-4 Software. Kuma Diffraction Ltd. Wroclaw, Poland. Kuma (2001). DATAPROC. Kuma Diffraction Ltd. Wroclaw, Poland. Oxford Diffraction (2008). CrysAlis RED. Oxford Diffraction Ltd, Abingdon, Oxfordshire, England Shahzadi, S., Shahid, K. & Ali, S. (2007). Russ. J. Coord. Chem. 33, 403–411. Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Tiekink, E. R. T. (1991). Appl. Organomet. Chem. 5, 1–23. metal-organic compounds m4 Danish et al. doi:10.1107/S1600536809051587 Acta Cryst. (2010). E66, m4 Acta Crystallographica Section E Structure Reports Online ISSN 1600-5368