Crystal structures of two dis-symmetric di-Schiff base compounds: 2-({()-2-[()-2,6-di-chloro-benzyl-idene]hydrazin-1-yl-idene}meth-yl)-6-meth-oxy-phenol and 4-bromo-2-({()-2-[()-2,6-di-chloro-benzyl-idene]hydrazin-1-yl-idene}meth-yl)phenol.

Each of the title dis-symmetric di-Schiff base compounds, CHClNO (I) and CHBrClNO (II), features a central azo-N-N bond connecting two imine groups, each with an -configuration. One imine bond in each mol-ecule connects to a 2,6-di-chloro-benzene substituent while the other links a 2-hydroxyl-3-meth-oxy-substituted benzene ring in (I) or a 2-hydroxyl-4-bromo benzene ring in (II). Each mol-ecule features an intra-molecular hydroxyl-O-H⋯N(imine) hydrogen bond.