Perrine M R Wingering, Felix Krämer, Melina E A Dilanas, Cristina Ruiz-Martinez, Ignacio Fernandez, Frank Breher
We report the synthesis of multiple rare-earth-metal complexes (Ln = Y, La, Ce, Sm, Lu) using tripodal N-donor ligands, which offer the key advantage of featuring only C, H, O and N elements, facilitating incineration to recover the metal. The structural properties of the Ln3+ complexes were investigated by X-ray diffraction, revealing that the ligands form complexes with a 1:1 ligand-to-metal ratio, with two of the three triflate anions coordinated to the metal centers in all cases. The coordination of the third triflate anion was found to be variable, as supported by various NMR spectroscopic investigations...
April 26, 2024: Chemistry: a European Journal