Synthesis and Characterization of 4-(Trifluoromethyl)-dibenzamide-benzoguanamine and Crystallographic Characterization of a p-Triflourobenzoic Acid Complex of Terbium(III)

Abstract

A molecule that coordinates with lanthanide metal ions and luminesces under UV light, 4-(trifluoromethyl)- dibenzamide-benzoguanamine (4TFMDBBG), was synthesized in 61.2% yield. When complexed with europium and terbium, red and green luminescence, respectively, was observed under UV light. Crystals of the ligand were isolated and its crystal structure was determined. Further characterization by NMR and UV-Vis spectroscopy and mass-spectrometry were performed. Crystals of a metal complex of a side product were also isolated and its crystal structure was determined.