Electrochemical synthesis of anhydrous luminescent Tb3+ complexes with aromatic and heterocyclic carboxylic acids

Abstract

The electrochemical synthesis of anhydrous terbium(III) complex compounds TbL₃ and Tb₂L₃ with several aromatic and heterocyclic carboxylic acids has been performed. Thermal stability of the synthesized complexes has been studied by means of thermogravimetry, and terbium(III) 4-tert-butylbenzoate has been found the most thermally stable (up to 400°C). Luminescent properties of the obtained compounds have been studied, and the terbium(III) complex with 2,3-pyridinedicarboxylic acid has exhibited the most efficient luminescence.