Lanthanum decahydride

Lanthanum decahydride
Identifiers
CAS Number	1130489-79-0;
3D model (JSmol)	Interactive image;
	InChI InChI=1S/La.10H Key: WKJDXOLLSPZSBN-UHFFFAOYSA-N;
	SMILES [LaH10];
Properties
Chemical formula	H10La
Molar mass	148.985 g·mol−1
Structure
Crystal structure	Cubic
Space group	Fm3m
Lattice constant	a = 5.1019(5) Å at 150 GPa
Lattice volume (V)	132.80(4) Å3
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Lanthanum decahydride is a polyhydride or superhydride compound of lanthanum and hydrogen (LaH₁₀) that has shown evidence of being a high-temperature superconductor. It was the first metal superhydride to be theoretically predicted, synthesized, and experimentally confirmed to superconduct at near room-temperatures. It has a superconducting transition temperature T_C around 250 K (−23 °C; −10 °F) at a pressure of 150 gigapascals (22×10^⁶ psi), and its synthesis required pressures above approximately 160 gigapascals (23×10^⁶ psi).

Identifiers
CAS Number	1130489-79-0
3D model (JSmol)	Interactive image
InChI InChI=1S/La.10H Key: WKJDXOLLSPZSBN-UHFFFAOYSA-N
SMILES [LaH10]
Properties
Chemical formula	H₁₀La
Molar mass	148.985 g·mol⁻¹
Structure
Crystal structure	Cubic
Space group	Fm3m
Lattice constant	a = 5.1019(5) Å at 150 GPa
Lattice volume (V)	132.80(4) Å³
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references