Chemistry:Praseodymium acetylacetonate
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| Names | |
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| IUPAC name
Tris(acetylacetonato)praseodymium(III)
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| Systematic IUPAC name
Tris[(Z)-4-oxopent-2-en-2-olato-κ2O,O′]praseodymium(III) | |
| Other names
Tris(2,4-pentanedione)praseodymium, Tris(acetylacetonato)praseodymium
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| Identifiers | |
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3D model (JSmol)
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PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| C15H25O8Pr | |
| Molar mass | 474.265 g·mol−1 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Praseodymium acetylacetonate is a coordination complex with the formula Pr(C
3H
7O
2)
3. This purported anhydrous acetylacetonate complex is widely discussed but only the dihydrate Pr(C
3H
7O
2)
3(H
2O)
2 has been characterized by X-ray crystallography.[1]
[2]
Upon heating under vacuum, other dihydrated lanthanide trisacetylacetonates convert to oxo-clusters M
4O(C
5H
7O
2)
10. This result suggests that anhydrous Pr(O2C5H7)3 may not exist.[3]
Instability constants (logYn) are 2.89, 4.17 and 5.29 (corresponding to n=1, 2, 3) have been determined for related materials.[4] It can be prepared by the reaction of trialkoxypraseodymium and acetylacetone.[5] When praseodymium chloride reacts with sodium acetylacetonate or lithium acetylacetonate in the solid phase, praseodymium acetylacetonate can also be obtained, but NaPr(acac)4 or LiPr(acac)4 will also be generated.[6] It can form the green complex Pr(acac)3(phen) with o-phenanthroline.[7]
References
- ↑ Phillips, Theodore; Sands, Donald E.; Wagner, William F. (1968). "Crystal and Molecular Structure of Diaquotris(acetylacetonato)lanthanum(III)". Inorganic Chemistry 7 (11): 2295–2299. doi:10.1021/ic50069a024.
- ↑ Shen, Cheng; Fan, Yuguo; Wang, Yutian; Liu, Guofa; Lu, Pinzhe (1983). "Crystal and Molecular Structures of Praseodymium and Samarium Acetylacetonate Dihydrate". Jilin Daxue Ziran Kexue Xuebao 2: 103-8.
- ↑ Tamang, Sem Raj; Singh, Arpita; Bedi, Deepika; Bazkiaei, Adineh Rezaei; Warner, Audrey A.; Glogau, Keeley; McDonald, Corey; Unruh, Daniel K. et al. (2020). "Polynuclear Lanthanide–Diketonato Clusters for the Catalytic Hydroboration of Carboxamides and Esters". Nat. Catal. 3: 154–162. doi:10.1038/s41929-019-0405-5.
- ↑ N.K. Dutt; P. Banyopadhyay (May 1964). "Chemistry of the lanthanons—XIII" (in en). Journal of Inorganic and Nuclear Chemistry 26 (5): 729–736. doi:10.1016/0022-1902(64)80316-X.
- ↑ Gavrilenko, V. V.; Chekulaeva, L. A.; Savitskaya, I. A.; Garbuzova, I. A. (1992). "Synthesis of yttrium, lanthanum, neodymium, praseodymium and lutetium alkoxides and acetylacetonates" (in ru). Izvestiya Akademi Nauk, Seriya Khimicheskaya 11: 2490–2493. ISSN 1026-3500.
- ↑ Zaitseva, I. G.; Kuz'mina, N. P.; Martynenko, L. I.; Makhaev, V. D.; Borisov, A. P. (1998). "Preparation of anhydrous praseodymium acetylacetonates by a solid-state mechanochemical method" (in ru). Zhurnal Neorganicheskoi Khimii 43 (5): 805–807. ISSN 0044-457X.
- ↑ P. C. Christidis; I. A. Tossidis; D. G. Paschalidis; L. C. Tzavellas (1998-09-15). "Tris(acetylacetonato)(1,10-phenanthroline)cerium(III) and Tris(acetylacetonato)(1,10-phenanthroline)praseodymium(III)". Acta Crystallographica Section C Crystal Structure Communications 54 (9): 1233–1236. doi:10.1107/S0108270198003898. ISSN 0108-2701. Bibcode: 1998AcCrC..54.1233C.
Template:Acetylacetonate complexes
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