Easy but not straightforward: base and solvent effect on the synthesis of luminescent europium 1,3-di(thien-2-yl)propane-1, 3-dionate coordination complexes

Abstract: Reaction between EuCl3 and the ligand 1,3-di(thien-2-yl)propane-1,3-dione (L) leads to luminescent coordination compounds [Eu[L.sub.3][(EtOH).sub.2]](1), [Eu[L.sub.2][(i-PrOH).sub.4]]Cl (2) and [Eu[L.sub.3]([(i-PrOH).sub.2]](3), isolated as single crystals in high yield (70%-95%). The Eu/[beta]-diketonate ratio [...]