Crystal structures and photoluminescence properties of chromium(III) complexes with 2-thenoyltrifluoroacetone ligand

Synthesis and characterization of chromium(III) complexes with 2-thenoyltrifluoroacetone ligand are described and the crystal structures of the two possible geometric isomers, efficiently obtained by crystallization, are reported for the first time. In the solid state structure, both isomers reveal a distorted octahedral geometry of the metal ion. In addition, absorption and emission properties of the complex are determined in solution and in a polymethylmethacrylate (PMMA) matrix.