Key indicators: single-crystal X-ray study; T = 293 K; mean (C-C) = 0.004 Å; disorder in main residue; R factor = 0.047; wR factor = 0.126; data-to-parameter ratio = 19.1. In the structure of the title compound, C 7 H 6 Cl 2 O 2 S, the three methyl hydrogen atoms are disordered over two sets of positions with essentially equal occupancy. Related literature For related literature, see: Brennan et al. (2006). Experimental Crystal data C 7 H 6 Cl 2 O 2 S M r = 225.08 Monoclinic, C2=c a = 11.7233

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... 6) Å b = 9.8849 (13) Å c = 16.216 (2) Å = 100.143 (2) V = 1849.8 (4) Å 3 Z = 8 Mo K radiation = 0.88 mm À1 T = 293 (2) K 0.50 Â 0.44 Â 0.33 mm Data collection Rigaku SCXmini diffractometer Absorption correction: multi-scan (ABSCOR; Higashi, 1995) T min = 0.53, T max = 0.76 6310 measured reflections 2101 independent reflections 1551 reflections with I > 2(I) R int = 0.028