Abstract
Two bromo-substituted Schiff bases 5-bromo-2-methoxy-4-(p-tolyliminomethyl)phenol (1) and 2-bromo-6-[(6-methylpyridin-2-ylimino)methyl]phenol (2) are prepared and characterized by elemental analysis, 1H and 13C NMR, and single crystal X-ray diffraction. Compound 1 crystallizes in the triclinic space group P\(\bar 1\) with unit cell dimensions a = 6.228(1) A, b = 10.929(2) A, c = 21.312(2) A, α = 104.230(2)°, β = 91.780(2)°, γ = 90.890(2)°, V = 1405.0(4) A3, Z = 4, R1 = 0.0359, and wR2 = 0.0830. Compound 2 crystallizes in the monoclinic space group P21/c with unit cell dimensions a = 8.180(2) A, b = 12.011(3) A, c = 12.843(3) A, β = 106.263(2)°, V = 1211.4(4) A3, Z = 4, R1 = 0.0364, and wR2 = 0.0889. X-ray diffraction indicates that the Schiff base molecules of the compounds display trans configuration with respect to the C=N double bonds. The crystal structures of the compounds are stabilized by hydrogen bonds and weak π•••π interactions.
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