Thanks to the development of experimental high-pressure techniques and methods for
crystal-structure prediction based on quantum mechanics, in the past decade, numerous …

Pressure, a fundamental thermodynamic variable, can generate two essential effects on
materials. First, pressure can create new high-pressure phases via modification of the …

Helium is generally understood to be chemically inert and this is due to its extremely stable
closed-shell electronic configuration, zero electron affinity and an unsurpassed ionization …

Evolutionary algorithms (EAs) coupled with density functional theory (DFT) calculations have
been used to predict the most stable hydrides of phosphorus (PH n, n= 1–6) at 100, 150, and …

The noble gases are the most inert group of the periodic table, but their reactivity increases
with pressure. Diamond-anvil-cell experiments and ab initio modelling have been used to …

An enduring geological mystery concerns the missing xenon problem, referring to the
abnormally low concentration of xenon compared to other noble gases in Earth's …

While often considered to be chemically inert, the reactivity of noble gas elements at
elevated pressures is an important aspect of fundamental chemistry. The discovery of Xe …

Until very recently, helium had remained the last naturally occurring element that was known
not to form stable solid compounds. Here we propose and demonstrate that there is a …

At high pressure, the typical behavior of elements dictated by the periodic table—including
oxidation numbers, stoichiometries in compounds, and reactivity, to name but a few—is …

Noble gas elements exhibit chemical reactivity under high pressure, forming novel
compounds through reactions with other substances, which has become a recent focus in …