Solvothermal In Situ Ligand Synthesis, Crystal Structure and Fluorescent Properties of a New Heterocyclic Compound 1, 1' - Bis{3-(Pyridin-2-yl)HImidazo[ 1, 5-a]Pyridine}

Solvothermal in situ ligand reaction of bis(2-pyridinylmethyl)amine (bpa) in the presence of Fe(ClO4)2 × 6H2O and NaN3 yielded the crystalline fluorescent organic heterocyclic compound 1, 1'-bis{3- (pyridin-2-yl)H-imidazo[1, 5-a]pyridine} 1 and the byproduct Fe(bpa)2(ClO4)2 2. Compound 1 is the first example of imidazo[1, 5-a]pyridine compound synthesized by in situ reaction under solvothermal conditions.