Studies on Organolanthanide Complexes IV. Synthesis of 1,10-Phenanthroline Coordinated Dicyclopentadienyl Early Lanthanide Chloride and Trifluroacetate

Abstract
Six new 1,10-phenanthroline coordinated dicyclopentadienyl early lanthanide trifluroacetate complexes, (C5H5)2LnOC(O)CF3· n Phen (Ln = Nd, Pr, n = 1 or 2; Ln = Ce, La, n = 2; Phen = 1,10-phenanthroline) were synthesized by the reaction of CF3COONa in THF with (C5H5)2LnC1·n Phen which was in turn prepared from LnC13·n Phen and C5H5Na. The structures of these new early organolanthanide complexes were verified by elemental analysis, IR, NMR and mass spectroscopy. The stabilization by coordinated 1,10-phenanthroline and its effect on the spectra were also discussed.