Integrated X-ray crystallography, optical and computational methods in studies of structure and luminescence of new synthesized complexes of lanthanides with ligands derived from 2,6-diformylpyridine

► Synthesis and X-ray structural studies of three new lanthanides(III) complexes with ligands derived from 2,6-diformylpyridine. ► Optical and computational methods applied in calculations of the triplet state energy and HOMO-LUMO of the ligand. ► Detailed luminescence parameters of [Eu(dfpbpsc-H+)2]NO3 (dfpbpsc = 2,6-diformylpyridine-bis(4-phenylsemicarbazone).