Synthesis and luminescent properties of a Schiff-base-boron-quinacridone compound

A novel Schiff-base-boron-quinacridone compound (4) has been synthesized. The absorption and emission properties of 4 have been studied carefully. Experimental results demonstrated that the in-troduction of Schiff-base-boron moieties could suppress the aggregation of molecules 4 in solution and enhance the photoluminescent efficiency in relatively high concentration solution. The energy transfer from the Schiff-base-boron moieties to quinacridone cores could take place in 4 system.