科研之友
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摘要
In the title compound, C16H13Cl2N3O2S, the dihedral angle between the aromatic rings is 6.62 (2)～ and the C=N〞N=C torsion angle is 176.2 (4)～. The thiazine ring shows an envelope conformation, with the S atom displaced by 0.633 (6) from the mean plane of the other five atoms (r.m.s. deviation = 0.037 ). The Cl atom is an an axial conformation and is displaced by 2.015 (6) from the thiazine ring plane. In the crystal, molecules are linked by C〞H...O interactions, generating a three-dimensional network. Very weak aromatic 羽每羽 stacking interactions [centroid每centroid separations = 3.928 (2) ] are also observed.
