Disodium helide

Disodium helide (Na2He) is a compound of helium and sodium that is stable at high pressures above 113 gigapascals (1,130,000 bar). It was first predicted using the USPEX crystal structure prediction algorithm and then synthesised in 2016.

Disodium helide

Disodium helide (Na2He) is a compound of helium and sodium that is stable at high pressures above 113 gigapascals (1,130,000 bar). It was first predicted using the USPEX crystal structure prediction algorithm and then synthesised in 2016.