Synthesis and Structure Optimization of Schiff Base Derived from p-Chlorobenzaldehyde and p-Aminobenzoic Acid by Rapid Efficient Gas Impacting Reaction

摘要

To confirm the advantage for synthesis of Schiff base using jet milling, Schiff base derived fromp-chlorobenzaldehyde and p-aminobenzoic acid was synthesized using jet milling. The ~1H NMR and FTIR technology confirmed the structure of Schiff base. Optimized geometrical structure showed that the HOMO and LUMO of Schiff base were -9.16 eV and -1.256 eV, respectively. And that the HOMO of Schiff base focused on benzene, in contrast, the LUMO of Schiff base was dispersed. The bond length and bond angle between atoms at imine group was smaller than that of other group.