Thulium acetylacetonate

Thulium acetylacetonate  File:Tm(acac)3(H2O)2.svg

Names
IUPAC name

Tris(acetylacetonato)thulium(III)

Systematic IUPAC name

Tris[(Z)-4-oxopent-2-en-2-olato-κ2O,O′]thulium(III)

Other names

Thulium(III) acetylacetonate

Identifiers

CAS Number

* 14589-44-7 anhydrous Y
* trihydrate: 21826-63-1 Y

3D model (JSmol)

* Interactive image
* trihydrate: Interactive image

ChemSpider |

* 48063949
* trihydrate: 22199481

PubChem CID

* 57369571

InChI

* InChI=1S/3C5H8O2.Tm/c3*1-4(6)3-5(2)7;/h3*3,6H,1-2H3;/q;;;+3/p-3

Key: ASFMKHGVRGERPB-UHFFFAOYSA-K

* trihydrate: InChI=1S/3C5H8O2.3H2O.Tm/c3*1-4(6)3-5(2)7;;;;/h3*3,6H,1-2H3;3*1H2;/q;;;;;;+3/p-3/b3*4-3-;;;;

Key: UZKSYWPAPWYRSV-VBBOVLQFSA-K

SMILES

* CC(=CC(=O)C)[O-].CC(=CC(=O)C)[O-].CC(=CC(=O)C)[O-].[Tm+3]

* trihydrate: CC(=CC(=O)C)[O-].CC(=CC(=O)C)[O-].CC(=CC(=O)C)[O-].[Tm+3].O.O.O

Properties

Chemical formula

| C15H21O6Tm
Molar mass | 466.261 g·mol−1
Appearance  | powder[1]
white powder (trihydrate)[2]

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

Thulium acetylacetonate is a coordination compound with the formula Tm(C5H7O2)3. This anhydrous acetylacetonate complex is often discussed but unlikely to exist per se. The 8-coordinated dihydrate Tm(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.[3][4] Upon attempted dehydration by heating under vacuum, other hydrated lanthanide tris(acetylacetonate) complexes decompose to give oxo-clusters.[5]

Thulium acetylacetonate can be prepared by the reaction of thulium hydroxide and acetylacetone.[6] Its monohydrate is not volatile.[7] The acetonitrile solution of its dihydrate and the dichloromethane solution of 5-[(4-fluorobenzylidene)amino]-8-hydroxyquinoline (HL) react by heating to obtain the complex [Tm4(acac)6(L)6(μ3-OH)2].[8]

## References

1. ↑ Pierson, H.O. (1999). Handbook of Chemical Vapor Deposition: Principles, Technology and Applications. Materials Science and Process Technology. Elsevier Science. p. 92. ISBN 978-0-8155-1743-6. https://books.google.com/books?id=GIsa4vuJgcUC&pg=PA92. Retrieved 2021-09-16.
2. ↑ Perry, D.L. (2016). Handbook of Inorganic Compounds. CRC Press. p. 494. ISBN 978-1-4398-1462-8. https://books.google.com/books?id=SFD30BvPBhoC&pg=PA494. Retrieved 2021-09-16.
3. ↑ Cheng, Shen; Yuguo, Fan; Yutian, Wang; Pinzhe, Lu; Guofa, Liu (1983). Gaodeng Xuexiao Huaxue Xuebao (Chem.J.Chin.Univ.) 4: 769.
4. ↑ Cambridge Crystallographic Data Center, number CCDC 1121251.
5. ↑ 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 (2): 154–162. doi:10.1038/s41929-019-0405-5.
6. ↑ Spencer, J.F. (1919). The Metals of the Rare Earths. Monographs on inorganic and physical chemistry. Longmans, Green. p. 153. https://books.google.com/books?id=4xBDAAAAIAAJ&pg=PA153. Retrieved 2021-09-16.
7. ↑ Friend, J.N. (1917). A Text-book of Inorganic Chemistry. Griffin. p. 438. https://books.google.com/books?id=CwxDAAAAIAAJ&pg=PA438. Retrieved 2021-09-16.
8. ↑ Hong-Ling Gao; Li Jiang; Shuang Liu; Hai-Yun Shen; Wen-Min Wang; Jian-Zhong Cui (2016). "Multiple magnetic relaxation processes, magnetocaloric effect and fluorescence properties of rhombus-shaped tetranuclear rare earth complexes" (in en). Dalton Transactions 45 (1): 253–264. doi:10.1039/C5DT03790E. ISSN 1477-9226. PMID 26600114. http://xlink.rsc.org/?DOI=C5DT03790E. Retrieved 2021-09-20.

## External reading

* Gschneidner, K.A.; Bunzli, J.C.G.; Pecharsky, V.K. (2005). Handbook on the Physics and Chemistry of Rare Earths. ISSN. Elsevier Science. ISBN 978-0-08-046102-1. https://books.google.com/books?id=Q8oPxFJlfp0C&pg=PA388. Retrieved 2021-09-16.

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Thulium compounds

* TmCl3
* TmBr3
* Tm2O3
* Tm2(SO4)3

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