Lanthanum decahydride
Chemical compound / From Wikipedia, the free encyclopedia
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,[2][3] synthesized,[4] and experimentally confirmed[5] to superconduct at near room-temperatures. It has a superconducting transition temperature TC 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).[6][7]
Quick Facts Identifiers, Properties ...
Identifiers | |
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3D model (JSmol) |
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Properties | |
H10La | |
Molar mass | 148.985 g·mol−1 |
Structure | |
Cubic | |
Fm3m | |
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).
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