Bis[2-({[2-(methylsulfanyl)phenyl]imino}- methyl)phenolato-j 2 N,O]zinc chloro- form disolvate Yen-Jen Chen, a Mon-Wei Hsiao, b Nai-Yuan Jheng, a Yi-Chun Lai a and Hsuan-Ying Chen a * a Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan, and b Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan Correspondence e-mail: hchen@kmu.edu.tw Received 10 September 2012; accepted 3 November 2012 Key indicators: single-crystal X-ray study; T = 110 K; mean (C–C) = 0.005 A ˚ ; R factor = 0.044; wR factor = 0.135; data-to-parameter ratio = 17.2. The monomeric title complex, [Zn(C 14 H 12 NOS) 2 ]2CHCl 3 or L 2 Zn2CHCl 3 , where L is the 2-({[2-(methylsulfanyl)phen- yl]imino}methyl)phenolate anion, may be obtained by the reaction of LZnEt with benzyl alcohol or by the reaction of two equivalents of LH with ZnEt 2 in tetrahydrofuran. The Zn atom, located on a twofold axis, is four-coordinated in a distorted tetrahedral geometry by two O atoms [Zn—O = 1.9472 (19) A ˚ ] from the phenolate anions and two imine N atoms [Zn—N = 2.054 (2) A ˚ ]. Related literature For backgroud to poly(lactide) (PLA) and its copolymers, see: Huang et al. (2007). For the use of bulky ligands coordinated to the active metal centre to avoid undesirable transester- ification during synthesis by ring-opening polymerization (ROP) of lactides, see: Wu et al. (2006). Many complexes with bulky ligands have been designed for this function, incorpor- ating a single active metal site, see: Wu et al. (2006). For the preparation of a series of Zn complexes with N,N,O-tridentate Schiff bases, which have great activity in the ROP of lactides, see: Chen et al. (2006). For the 2-(2,6-diisopropylphenyl- imino)methyl)-4-nitrophenolate anion, see: Chisholm et al. (2001). Experimental Crystal data [Zn(C 14 H 12 NOS) 2 ]2CHCl 3 M r = 788.72 Monoclinic, C2=c a = 10.5673 (9) A ˚ b = 21.5085 (19) A ˚ c = 15.1215 (14) A ˚  = 97.309 (2)  V = 3409.0 (5) A ˚ 3 Z =4 Mo K radiation  = 1.34 mm 1 T = 110 K 0.45  0.38  0.32 mm Data collection Bruker SMART CCD area-detector diffractometer Absorption correction: multi-scan (SADABS; Bruker, 2001) T min = 0.381, T max = 1.000 9547 measured reflections 3345 independent reflections 2494 reflections with I >2(I) R int = 0.037 Refinement R[F 2 >2(F 2 )] = 0.044 wR(F 2 ) = 0.135 S = 1.01 3345 reflections 195 parameters 6 restraints H-atom parameters constrained Á max = 0.50 e A ˚ 3 Á min = 0.50 e A ˚ 3 Data collection: APEX2 (Bruker, 2007); cell refinement: SAINT (Bruker, 2007); data reduction: SAINT; 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. Financial support from the National Science Council of the Republic of China is gratefully appreciated. Helpful comments from the reviewers are also greatly appreciated. Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: HP2049). References Bruker (2001). SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Bruker (2007). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Chen, H.-Y., Tang, H.-Y. &Lin, C.-C. (2006). Macromolecules, 39, 3745–3752. Chisholm, M. H., Gallucci, J. C. & Zhen, H. (2001). Inorg. Chem. 40, 5051– 5054. Huang, C.-K., Lo, C.-L., Chen, H.-H. & Hsiue, G.-H. (2007). Adv. Funct. Mater. 17, 2291–2297. Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Wu, J.-C., Yu, T.-L., Chen, C.-T. & Lin, C.-C. (2006). Coord. Chem. Rev. 250, 602–626. metal-organic compounds m1496 Chen et al. doi:10.1107/S1600536812045473 Acta Cryst. (2012). E68, m1496 Acta Crystallographica Section E Structure Reports Online ISSN 1600-5368