Bis(l-4-hydroxy-2-oxidobenzaldehyde 4-ethylthiosemicarbazone)-j 4 O 2 ,N 1 ,S:- O 2 ;j 4 O 2 :O 2 ,N 1 ,S-bis[chloridozinc(II)] dimethyl sulfoxide trisolvate Kong Wai Tan, a Chew Hee Ng, b Mohd Jamil Maah a * and Seik Weng Ng a a Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia, and b Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, 53300 Kuala Lumpur, Malaysia Correspondence e-mail: mjamil@um.edu.my Received 14 March 2009; accepted 8 April 2009 Key indicators: single-crystal X-ray study; T = 123 K; mean (C–C) = 0.005 A ˚ ; disorder in solvent or counterion; R factor = 0.042; wR factor = 0.134; data-to- parameter ratio = 19.2. The two Zn II atoms in the title compound, [Zn 2 (C 10 H 12 N 3 - O 2 S) 2 Cl 2 ]3C 2 H 6 OS, are each N,O,S-chelated by a mono- deprotonated Schiff base ligand. The Zn atoms are bridged through the phenolate O atom, leading to a central Zn 2 O 2 core. Each Zn atom has a Cl atom in the apical position of a distorted square-pyramidal environment. Hydroxy–DMSO (DMSO is dimethyl sulfoxide) O—HO and amide–DMSO N—HO hydrogen bonds link the components of the crystal structure. Two of the DMSO molecules are partially disordered, with each modelled over two sites of equal weight. Related literature For (4-hydroxy-2-oxidobenzaldehyde thiosemicarbazonato)- (phenanthroline)zinc DMSO monohydrate, see: Tan et al. (2009). Experimental Crystal data [Zn 2 (C 10 H 12 N 3 O 2 S) 2 Cl 2 ]3C 2 H 6 OS M r = 912.60 Triclinic, P 1 a = 9.4151 (1) A ˚ b = 12.4349 (2) A ˚ c = 17.2423 (2) A ˚ = 71.4438 (6) = 89.7703 (7) = 83.4964 (6) V = 1900.30 (4) A ˚ 3 Z =2 Mo K radiation = 1.73 mm 1 T = 123 K 0.25 0.20 0.20 mm Data collection Bruker SMART APEX diffractometer Absorption correction: multi-scan (SADABS; Sheldrick, 1996) T min = 0.672, T max = 0.724 17632 measured reflections 8627 independent reflections 7501 reflections with I >2(I) R int = 0.027 Refinement R[F 2 >2(F 2 )] = 0.042 wR(F 2 ) = 0.134 S = 1.00 8627 reflections 450 parameters 16 restraints H-atom parameters constrained Á max = 1.70 e A ˚ 3 Á min = 1.03 e A ˚ 3 Table 1 Hydrogen-bond geometry (A ˚ , ). D—HA D—H HA DA D—HA O2—H2OO5 0.84 1.85 2.623 (3) 153 O4—H4OO6 0.84 1.81 2.645 (4) 171 N2—H2NCl2 i 0.88 2.43 3.251 (2) 156 N3—H3NCl2 i 0.88 2.51 3.319 (3) 153 N5—H5NO7 0.88 1.90 2.706 (4) 152 N6—H6NO7 0.88 2.05 2.834 (4) 148 Symmetry code: (i) x þ 1; y; z þ 1. Data collection: APEX2 (Bruker, 2008); 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: X-SEED (Barbour, 2001); software used to prepare material for publication: publCIF (Westrip, 2009). We thank the University of Malaya (grant No. PS197/2008 A) and the Ministry of Science and Technology (grant No. ESc 02-02-11-SF0033) for supporting this study. KWT thanks the Ministry of Higher Education for an SLAI scholarship. Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: TK2395). References Barbour, L. J. (2001). J. Supramol. Chem. 1, 189–191. Bruker (2008). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Sheldrick, G. M. (1996). SADABS. University of Go ¨ttingen, Germany. Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Tan, K. W., Ng, C. H., Maah, M. J. & Ng,S. W. (2009). Acta Cryst. E65, m61– m62. Westrip, S. P. (2009). publCIF. In preparation. metal-organic compounds Acta Cryst. (2009). E65, m549 doi:10.1107/S1600536809013385 Tan et al. m549 Acta Crystallographica Section E Structure Reports Online ISSN 1600-5368