Chemistry:Neodymium(III) hydride

Neodymium(III) hydride
Names
	Other names Neodymium(III) hydride
Identifiers
CAS Number	13864-04-5 ;
3D model (JSmol)	Interactive image;
ChemSpider	146069;
EC Number	237-610-3;
PubChem CID	166940;
	InChI InChI=1S/Nd Key: InChIKey=QEFYFXOXNSNQGX-UHFFFAOYSA-N;
	SMILES [NdH3];
Properties
Chemical formula	NdH3
Hazards
GHS pictograms
GHS Signal word	Danger
GHS hazard statements	H250, H260, H315, H319
GHS precautionary statements	P210, P222, P223, P231, P231+232, P233, P264, P264+265Script error: No such module "Preview warning".Category:GHS errors, P280, P302+335+334Script error: No such module "Preview warning".Category:GHS errors, P302+352, P305+351+338, P321, P332+317Script error: No such module "Preview warning".Category:GHS errors, P337+317Script error: No such module "Preview warning".Category:GHS errors, P362+364Script error: No such module "Preview warning".Category:GHS errors, P370+378, P402+404, P501
Related compounds
Other anions	Neodymium(III) oxide; Neodymium(III) acetate; Neodymium(III) chloride
Other cations	europium hydride; ytterbium hydride
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

Neodymium(III) hydride is an inorganic compound composed of neodymium and hydrogen with a chemical formula NdH₃.^[2]^[3] In this compound, the neodymium atom is in the +3 oxidation state and the hydrogen atoms are -1. It is highly reactive.^[4]

Preparation

Neodymium(III) hydride can be produced by directly reacting neodymium and hydrogen gas:^[5]

2Nd + 3H₂ → 2NdH₃

It can also be made by hydrogenerating neodymium(II) hydride.^[6]

Properties

Neodymium hydride is a blue crystal of the hexagonal system, with unit cell parameters a=0.385 nm, c=0.688 nm.^[7]

It reacts with water to form neodymium hydroxide and hydrogen gas:^[8]

NdH₃ + 3 H₂O → Nd(OH)₃ + 3 H₂

References

↑ "Neodymium hydride (NdH3)" (in en). https://pubchem.ncbi.nlm.nih.gov/compound/166940#section=Safety-and-Hazards.
↑ Химия и технология редких и рассеянных элементов, ч. II. М.: Высш. школа. 1976.
↑ Диаграммы состояния двойных металлических систем. 1. М.: Машиностроение. 1996. ISBN 5-217-02688-X.
↑ The 5f3 vs. 4f3. Routes to and properties of highly reactive neodymium(III) hydrocarbyl and hydride complexes Heiko Mauermann, Paul N. Swepston, and Tobin J. Marks Organometallics 1985 4 (1), 200-202 DOI: 10.1021/om00120a036
↑ Richter, Bo; Grinderslev, Jakob B.; Møller, Kasper T.; Paskevicius, Mark; Jensen, Torben R. (Aug 23, 2018). "From Metal Hydrides to Metal Borohydrides". Inorganic Chemistry (American Chemical Society (ACS)) 57 (17): 10768–10780. doi:10.1021/acs.inorgchem.8b01398. ISSN 0020-1669. PMID 30137973.
↑ Fukai, Y. (2005). The Metal-Hydrogen System, Basic Bulk Properties, 2d edition. Springer. ISBN 978-3-540-00494-3.
↑ Peterson, D. T.; Poskie, T. J.; Straatmann, J. A. (1971-02-01). "Neodymium-neodymium hydride phase system" (in en). Journal of the Less Common Metals 23 (2): 177–183. doi:10.1016/0022-5088(71)90078-6. ISSN 0022-5088. https://dx.doi.org/10.1016/0022-5088%2871%2990078-6.
↑ Widerøe, Marius; Fjellvåg, Helmer; Norby, Truls; Willy Poulsen, Finn; Willestofte Berg, Rolf (2011-07-01). "NdHO, a novel oxyhydride" (in en). Journal of Solid State Chemistry 184 (7): 1890–1894. doi:10.1016/j.jssc.2011.05.025. ISSN 0022-4596. https://www.sciencedirect.com/science/article/pii/S002245961100274X.