Heteroleptic polypyrazolylborate derivatives of the lanthanide ions. The synthesis of acetylacetonate derivatives and the molecular structures of [Ln{HB(C3N2H3)3}2{MeC(O)CHC(O)Me}] (Ln = Ce,Yb) |
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| Institution: | 1. St. Petersburg State University of Chemistry and Pharmacy, St. Petersburg, 197376 Russia;2. Russia St. Petersburg State University, St. Petersburg, 199034 Russia |
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| Abstract: | The air and moisture stable complexes Ln{HB(C3N2H3)3}2{MeC(O)CHC(O)Me}] (Ln = La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Yb, Lu, Y), have been prepared and characterized. The molecular structures of the compounds with Ln = Ce and Yb reveal that a substantial distortion of the coordination geometry found for Ce3+ is necessary to allow the ligand set to accommodate the smaller Yb3+ ion. |
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