Photoluminescence properties of samarium(III)-based complexes: Synthesis, characterization and single crystal X-ray

Abstract

New eight-coordinate Sm(III) complexes have been synthesized by diketone ligand having different substituent groups and 1,10-phenanthroline. Structural parameters of complex [Sm(BCP-PPon)3(Phen)] were determined by single crystal X-ray diffraction study. Also, geometry optimization of the complexes were performed and compared with experimental data. In addition to photoluminescence properties of the Sm(III) complexes, elemental analysis, UV–Vis, FT-IR, MALDI-TOF MS methods were used to investigate of their structural properties. Synthesis studies, structure and luminescence of Sm(III) complexes of the type [Sm(MPBP-PPon)3(Phen)], [Sm(BMP-PPon)3(Phen)]·2H2O, [Sm(BCP-PPon)3(Phen)] ([MPBP-PPon = 1-(4-methoxyphenyl)-3-(4-tert-butylphenyl)-1,3-propanedione; BMP-PPon = 1,3-bis(4-methoxyphenyl)-1,3-propanedione; BCP-PPon = 1,3-bis(4-chlorophenyl)-1,3-propanedione and Phen = 1,10-phenanthroline]) were reported in detail. The two types of intermolecular interactions (C–H⋯O) and (C–H⋯Cl) were observed in the structure of the complex [Sm(BCP-PPon)3(Phen)]. It was observed that the bond lengths' and angles' results obtained theoretically of the complex were in harmony with experimental data.