[P=O]-containing compounds for applications in polymeric materials as flame retardants and markers.

[P=O]-containing compounds and luminescent Ln(III) and Mn(II) complexes were prepared for applications in polymeric materials as flame retardants and markers. The experimental work first concerned the investigation of a new synthetic route to functionalize DOPO (6H-dibenzo[c,e][1,2]oxaphosphinine 6-oxide) by formally replacing the P-bonded hydrogen atom with N- and O-containing fragments. The second part concerned the synthesis of new luminescent Ln(III) and Mn(II) complexes and the investigation of their optical properties. The [P=O]-containing compounds and the complexes were characterized by UV-vis spectroscopy, IR, NMR and magnetism measurements, while the optical properties were investigated by PL and PLE spectroscopy.