Erbium acetylacetonate is a coordination compound with the formula Er(C5H7O2)3. This anhydrous acetylacetonate complex is often discussed but unlikely to exist per se. The 8-coordinated dihydrate Er(C5H7O2)3(H2O)2 is a more plausible formula based on the behavior of other lanthanide acetylacetonates. The dihydrate has been characterized by X-ray crystallography.[2]
3(H2O)2.svg)
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3D model (JSmol)
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| Properties | |
| C15H21ErO6 | |
| Molar mass | 464.586 g·mol−1 |
| Appearance | pink crystals |
| Melting point | 103 °C (376 K)[1] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Upon heating under vacuum, the dihydrate converts to the oxo-cluster Er4O(C5H7O2)10. This behavior, which is also observed for other lanthanide acetylacetonates, further illustrates the implausibility of six-coordinate Er(C5H7O2)3.[3]
References
edit- ^ Janice M. Koehler, William G. Bos (December 1967). "A novel synthesis of some anhydrous rare earth acetylacetonates". Inorganic and Nuclear Chemistry Letters. 3 (12): 545–548. doi:10.1016/0020-1650(67)80023-0. Retrieved 2021-09-20.
- ^ Jiang, Shang-Da; Wang, Bing-Wu; Su, Gang; Wang, Zhe-Ming; Gao, Song (2010). "A Mononuclear Dysprosium Complex Featuring Single-Molecule-Magnet Behavior". Angewandte Chemie International Edition. 49 (41): 7448–7451. doi:10.1002/anie.201004027. PMID 20803599.
- ^ Tamang, Sem Raj; Singh, Arpita; Bedi, Deepika; Bazkiaei, Adineh Rezaei; Warner, Audrey A.; Glogau, Keeley; McDonald, Corey; Unruh, Daniel K.; Findlater, Michael (2020). "Polynuclear Lanthanide–Diketonato Clusters for the Catalytic Hydroboration of Carboxamides and Esters". Nat. Catal. 3 (2): 154–162. doi:10.1038/s41929-019-0405-5. S2CID 209897045.