Poly[hemi-l-aqua-[l-2-(2-bromobenze- nesulfonamido)benzoato]sodium(I)] Islam Ullah Khan, a Muhammad Nadeem Arshad, a Mehmet Akkurt, b * Ghulam Mustafa a and Muhammad Shafiq a a Department of Chemistry, Government College University, Lahore, Pakistan, and b Department of Physics, Faculty of Arts and Sciences, Erciyes University, 38039 Kayseri, Turkey Correspondence e-mail: akkurt@erciyes.edu.tr Received 17 July 2009; accepted 19 July 2009 Key indicators: single-crystal X-ray study; T = 296 K; mean (C–C) = 0.005 A ˚ ; some non-H atoms missing; R factor = 0.049; wR factor = 0.125; data-to-parameter ratio = 16.5. The asymmetric unit of the title compound, [Na(C 13 H 9 Br- NO 4 S)(H 2 O) 0.5 ] n , contains two Na + cations, two substituted benzoate anions and one water molecule of crystallization. The Na + cations are coordinated in an octahedral geometry by two carboxylate O atoms, two sulfonyl O atoms and two water O atoms. The latter two ligands occupy trans positions. The polymeric network structure of the title complex is character- ized by a layered assembly parallel to (001) and is further consolidated by N—HO, O—HO and C—HO hydrogen-bonding interactions. Related literature For the physical properties of metal complexes of anthranilic acid derivatives, see: Chacko & Parameswaran (1984). For 2- (4-bromobenzenesulfonamido) benzoic acid, see: Arshad et al. (2009). Experimental Crystal data [Na(C 13 H 9 BrNO 4 S)(H 2 O) 0.5 ] M r = 387.18 Triclinic, P 1 a = 9.1683 (6) A ˚ b = 9.2722 (5) A ˚ c = 18.4183 (12) A ˚ = 97.717 (2) = 101.837 (2) = 101.467 (2) V = 1476.64 (16) A ˚ 3 Z =4 Mo K radiation = 2.97 mm 1 T = 296 K 0.21 0.12 0.10 mm Data collection Bruker Kappa APEXII CCD area- detector diffractometer Absorption correction: multi-scan (SADABS; Bruker, 2007) T min = 0.574, T max = 0.755 28784 measured reflections 6503 independent reflections 3926 reflections with I >2(I) R int = 0.045 Refinement R[F 2 >2(F 2 )] = 0.049 wR(F 2 ) = 0.125 S = 1.01 6503 reflections 394 parameters 3 restraints H atoms treated by a mixture of independent and constrained refinement Á max = 0.79 e A ˚ 3 Á min = 0.78 e A ˚ 3 Table 1 Hydrogen-bond geometry (A ˚ , ). D—HA D—H HA DA D—HA N1—H1O3 0.86 1.88 2.588 (3) 138 O9—HW1O8 0.849 (19) 1.97 (3) 2.768 (3) 156 (6) N2—H2O7 0.86 1.90 2.595 (4) 137 O9—HW2O4 i 0.86 (4) 1.91 (4) 2.730 (3) 160 (6) C2—H2AO2 0.93 2.52 2.886 (4) 104 C8—H8O2 0.93 2.55 3.117 (5) 120 C11—H11O1 ii 0.93 2.53 3.429 (4) 162 C11—H11O4 0.93 2.41 2.732 (5) 100 C19—H19O5 0.93 2.51 2.889 (5) 105 C22—H22O8 0.93 2.41 2.736 (4) 101 C25—H25O5 0.93 2.48 3.103 (5) 124 Symmetry codes: (i) x; y; z þ 1; (ii) x 1; y; z. Data collection: APEX2 (Bruker, 2007); cell refinement: SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SIR97 (Altomare et al. , 1999); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON (Spek, 2009). The authors acknowledge the Higher Education Commis- sion of Pakistan for providing a project grant to the Materials Chemistry Laboratory at GC University, Lahore. Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: FJ2240). References Altomare, A., Burla, M. C., Camalli, M., Cascarano, G. L., Giacovazzo, C., Guagliardi, A., Moliterni, A. G. G., Polidori, G. & Spagna, R. (1999). J. Appl. Cryst. 32, 115–119. Arshad, M. N., Khan, I. U., Akkurt, M., Shafiq, M. & Mustafa, G. (2009). Acta Cryst. E65, o1610–o1611. Bruker (2007). APEX2, SADABS and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Chacko, J. & Parameswaran, G. (1984). J. Therm. Anal. 29, 3–11. Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. Farrugia, L. J. (1999). J. Appl. Cryst. 32, 837–838. Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Spek, A. L. (2009). Acta Cryst. D65, 148–155. metal-organic compounds m982 Khan et al. doi:10.1107/S1600536809028505 Acta Cryst. (2009). E65, m982 Acta Crystallographica Section E Structure Reports Online ISSN 1600-5368