Terbium(IV) fluoride

Terbium(IV) fluoride is an inorganic compound with a chemical formula TbF₄. It is a white solid that is a strong oxidizer. It can be produced by the reaction between very pure terbium(III) fluoride and xenon difluoride, chlorine trifluoride or fluorine gas:[1]

2 TbF₃ + F₂ → 2 TbF₄

Terbium(IV) fluoride

Names
Other names terbium tetrafluoride
Identifiers
CAS Number	36781-15-4^Y
3D model (JSmol)	Interactive image
ChemSpider	21493830
PubChem CID	90471797
InChI InChI=1S/4FH.Tb/h4*1H;/q;;;;+4/p-4 Key: XWMJNWMCMQWTCG-UHFFFAOYSA-J
SMILES [F-].[F-].[Tb+4].[F-].[F-]
Properties
Chemical formula	TbF4
Appearance	white solid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Properties

Terbium(IV) fluoride hydrolyzes quickly in hot water, producing terbium(III) fluoride and terbium oxyfluoride (TbOF). Heating terbium(IV) fluoride will cause it to decompose into terbium(III) fluoride and fluorine gas.[2]

2 TbF₄ → 2 TbF₃ + F₂↑

The reaction will produce the mixed valence compound Tb(TbF₅)₃, which has the same crystal form as Ln(HfF₅)₃.[3]

Terbium(IV) fluoride can oxidize cobalt trifluoride into cobalt tetrafluoride:[4]

TbF₄ + CoF₃ → TbF₃ + CoF₄↑

It can fluoronate [60]fullerene at 320–460 °C.[5]

When terbium(IV) fluoride reacts with potassium chloride and fluorine, it can produce the mixed valence compound KTb₃F₁₂.[6] A mixture of rubidium fluoride, aluminium fluoride and terbium(IV) fluoride produces Rb₂AlTb₃F₁₆.[7]

References

1. 无机化学丛书 第七卷 钪 稀土元素. 科学出版社. pp 244-246. 1. 卤素化合物
2. "Thermal decomposition of curium tetrafluoride and terbium tetrafluoride". Journal of Solid State Chemistry. 73 (2): 524–530. 1988-04-01. doi:10.1016/0022-4596(88)90140-5. ISSN 0022-4596. Retrieved 2018-12-09.
3. Nikulin V V, Goryachenkov S A, Korobov M V, et al. On thermal stability of terbium tetrafluoride[J]. Zhurnal Neorganicheskoj Khimii, 1985, 30(10): 2530-2533.
4. "Atomic fluorine in thermal reactions involving solid TbF4". Journal of Fluorine Chemistry. 104 (2): 291–295. 2000-07-01. doi:10.1016/S0022-1139(00)00259-1. ISSN 0022-1139. Retrieved 2018-12-09.
5. O. V. Boltalina, A. Yu. Lukonin, V. K. Pavlovich, L. N. Sidorov, R. Taylor, A. K. Abdul-Sada (May 1998). "Reaction of [60]Fullerene with Terbium(IV) Fluoride". Fullerene Science and Technology. 6 (3): 469–479. doi:10.1080/10641229809350215. ISSN 1064-122X. Retrieved 2018-12-13.CS1 maint: multiple names: authors list (link)
6. "Synthesis and Crystal Structure of a New Mixed-Valence Terbium Fluoride, KTb^IIITb^IV₂F₁₂, and Related KLn^IIIM^IV₂F₁₂Compounds (M^IV=Tb, Zr, Hf;Ln^III=Ce–Lu)". Journal of Solid State Chemistry. 139 (2): 248–258. 1998-09-01. doi:10.1006/jssc.1998.7837. ISSN 0022-4596. Retrieved 2018-12-10.
7. "Synthesis and crystal structure of Rb₂AlTb₃F₁₆: a new mixed-valence terbium fluoride". Solid State Sciences. 5 (8): 1141–1148. 2003-08-01. doi:10.1016/S1293-2558(03)00131-6. ISSN 1293-2558. Retrieved 2018-12-10.

attribution: This article was translated from the Chinese article zh:四氟化铽