Two tetrakis(benzoylacetonato)lanthanide species: synthesis,characterization and structures of tetrakis(benzoylacetonato)cerium(IV) and triethylammonium tetrakis(benzoylacetonato)lanthanate(III) tetrahydrate |
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Abstract: | Tetrakis(benzoylacetonato)cerium(IV), Ce(bzac)4] and triethylammonium tetrakis(benzoylacetonato)lanthanate(III) tetrahydrate, Et3NH]La(bzac)4] · 4H2O were prepared and characterized by TG and DCS measurements, IR spectroscopy, and X-ray structure analysis. The coordination polyhedron of cerium is a trigonal dodecahedron, while that of lanthanum is a distorted square antiprism. Thermal and spectroscopic measurements indicate that bonding of the ligand to metal is stronger in Ce(bzac)4] than in La(bzac)4]?. |
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Keywords: | Lanthanide β-Diketonate Crystal structure Octacoordination |
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