Tetra-ethyl-ammonium tetra-kis-(1,1,1,5,5,5-hexafluoroacetyl-acetonato) terbate(III)

Abstract

The title compound, (C 8H 20N)[Tb(C 5HF 6O 2) 4], is a tetrakis β-diketonate complex of hexa-fluoro-acetyl-acetone with terbium(III), and tetra-ethyl-ammonium as the counter-ion. This compound shows typical green terbium(III) luminescence upon excitation at about 335 nm. The coordination geometry around the Tb III atom is a slightly distorted square anti-prism. One hexa-fluoro-acetyl-acetone ligand has a disordered CF 3 group [occupancies of 0.575 (4) and 0.425 (4)]. A three-dimensional network is built up by linkage of Tb III complexes via C - H⋯F inter-actions.