2-[(1,3-Benzothiazol-2-yl)iminomethyl]-6-methoxyphenol: a new monoclinic polymorph

The title compound, C15H12N2O2S, is a P2(1)/c polymorph of a previously reported P2(1)/n polymorph [Buyukgungor et al. (2004). Acta Cryst. E60, o1414-o1416]. The dihedral angle between the benzothiazole (r.m.s. deviation = 0.010 angstrom) and the benzene ring of 7.86 (6)degrees compares with 10.76 (10)degrees in the literature structure. The methoxy substituent is almost coplanar with the benzene ring to which it is attached [CO-C-C torsion angle = 178.31 (14)degrees] and the conformation about the imine bond [1.287 (2) angstrom] is E. There is an intramolecular O-H center dot center dot center dot N hydrogen bond and the hydroxy O and thioether S atoms are syn. In the crystal, columns are formed along the b axis as centrosymmetric dimeric aggregates, mediated by C-H center dot center dot center dot O interactions and linked by pi-pi interactions between the thiazole and benzene rings [centroid-to-centroid distance = 3.8256 (10) angstrom].