Aluminium complexes of N2O2-type dipyrrins: the first hetero-multinuclear complexes of metallo-dipyrrins with high fluorescence quantum yields

The aluminium complexes of N2O2-dipyrrins were synthesized and the absorption/fluorescence spectral changes caused by the complex formation with ZnCl2, ZnBr2 and Zn(OAc)(2) were examined.