(Z)-N-[3-(Phenylsulfonyl)thiazolidin-2-ylidene]cyanamide

In the title compound, C10H9N3O2S2, the dihedral angle between the benzene and thiazolidine rings is 79.8 (2)°. Intermolecular C—H⋯N and C—H⋯O interactions help to stabilize the crystal structure.

In the title compound, C 10 H 9 N 3 O 2 S 2 , the dihedral angle between the benzene and thiazolidine rings is 79.8 (2) . Intermolecular C-HÁ Á ÁN and C-HÁ Á ÁO interactions help to stabilize the crystal structure.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: HG2727).

Comment
Thiazolidine is an important kind of group in organic chemistry. The molecular structure of thiazole contains N and S atoms, which are easily able to bridge with other molecules or metals (Trabanelli, 1991;Jardy et al., 1992). And many researchers have been focused on the corrosion inhibition performance of the thiazole. Sarawy (Sarawy et al., 2008) used the weight loss and electrochemical polarization methods studied some thiazole derivatives as corrosion inhibitors for carbon steel in acidic medium. Vastag (Vastag et al., 2001) investigated the inhibition characteristics of some thiazole derivatives against copper corrosion in acidic sulfate containing media. In order to search for new thiazole compounds with higher corrosion inhibition, we synthesized the (Z)-N-(3-(phenylsulfonyl) thiazolidin-2-ylidene)cyanamide and describe its structure here.

Experimental
A mixture of N-cyanoiminothiazolidine 10 mmol (1.27 g), benzenesulfonyl chloride (1.77 g, 10 mmol) and (1.01 g, 10 mmol) triethylamine is refluxed in absolute acetone (25 ml) for 3 h. On cooling, the product crystallizes and is filtered, and recrystallized from absolute EtOH, yield 2.38 g (89.3%). Single crystals suitable for X-ray measurements were obtained by recrystallization from acetonitrile at room temperature.

Refinement
H atoms were positioned geometrically and refined using a riding model, with C-H = 0.93 or 0.97 Å and with U iso (H) = 1.2 times U eq (C). Fig. 1. The molecular structure of (I), with atom labels and 40% probability displacement ellipsoids for non-H atoms.