Uranium(IV) hydride

Uranium (IV) hydride
Names
	IUPAC name Uranium (IV) hydride
Identifiers
3D model (JSmol)	Interactive image;
	InChI InChI=1S/U.4H Key: ADLLSJWBWKEZAC-UHFFFAOYSA-N;
	SMILES [UH4];
Properties
Molar mass	242.06067
Related compounds
Other anions	Uranium(IV) iodide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Uranium(IV) hydride is a chemical compound with the chemical formula U H₄, a metal hydride.

In 1997, Souter et al. reported the production of UH₄ reacting laser ablated uranium atoms with dihydrogen and capturing the product on solid argon. The assignment of the structure was made using infrared spectroscopic evidence supported by DFT calculations.^[1] Uranium(IV) hydride has a quasi-tetrahedral (C_s) structure. UH₄ is formed by the successive insertion of uranium into two hydrogen molecules:

U + H₂ → UH₂

UH₂ + H₂ → UH₄

Further reaction with hydrogen, only produces dihydrogen complexes: UH₄(H₂)_n (1 ≤ n ≤ 6).^[2]

References

^ Souter, Philip F.; Kushto, Gary P.; Andrews, Lester; Neurock, Matthew (1997). "Experimental and Theoretical Evidence for the Formation of Several Uranium Hydride Molecules". Journal of the American Chemical Society. 119 (7): 1682–1687. doi:10.1021/ja9630809.
^ Raab, Juraj; Lindh, Roland H.; Wang, Xuefeng; Andrews, Lester; Gagliardi, Laura (2007). "A Combined Experimental and Theoretical Study of Uranium Polyhydrides with New Evidence for the Large Complex UH₄(H₂)₆". The Journal of Physical Chemistry A. 111 (28): 6383–6387. Bibcode:2007JPCA..111.6383R. doi:10.1021/jp0713007. PMID 17530832.

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[Souter1997-1] Souter, Philip F.; Kushto, Gary P.; Andrews, Lester; Neurock, Matthew (1997). "Experimental and Theoretical Evidence for the Formation of Several Uranium Hydride Molecules". Journal of the American Chemical Society. 119 (7): 1682–1687. doi:10.1021/ja9630809.

[Raab2007-2] Raab, Juraj; Lindh, Roland H.; Wang, Xuefeng; Andrews, Lester; Gagliardi, Laura (2007). "A Combined Experimental and Theoretical Study of Uranium Polyhydrides with New Evidence for the Large Complex UH₄(H₂)₆". The Journal of Physical Chemistry A. 111 (28): 6383–6387. Bibcode:2007JPCA..111.6383R. doi:10.1021/jp0713007. PMID 17530832.

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