“…In recent years, we have been interested in coordination chemistry and properties of lanthanide complexes with P=O ligands. Previously, we have composed lanthanide complexes [ Ln (OPPh 3 ) 2 (phen)(NO 3 ) 3 ] ( Ln = Ce, Gd, Tb, Ho, Eu), [ Ln (OPPh 3 ) 2 (C 2 H 5 OH)(NO 3 ) 3 ] ( Ln = Tb, Ho, Er, Tm), [Y(Ph 3 PO) 4 (NO 3 ) 2 ][NO 3 ] with the ligand OPPh 3 and complexes [ Ln L 4 ](OTf) 3 ( Ln = Ce, Pr, Nd, Sm, Eu, Gd, Dy, Yb), [DyL 4 ](OTf) 3 · DMF and [( i PrO) 2 P(O)CH 2 ‐P(O)(O i Pr) 2 ] with the bidentate ligand tetrakis(O‐isopropyl)methylenediphosphonate.…”