Synthesis, crystal structure and phase transition of a Xe–N₂ compound at high pressure: experimental indication of orbital interaction between xenon and nitrogen

Abstract

The van der Waals compound Xe(N) with a C15 Laves structure was successfully synthesised at pressures greater than 4.4 GPa. We found that, at 10 GPa, the structure reversibly transforms from a cubic to a tetragonal phase. Further compression results in changes of Xe-N compound, which could result in the enhancement of orbital interactions between the xenon and nitrogen atoms.

Noble Gas–Tungsten Peroxide Complexes in Noble Gas Matrixes: Infrared Spectroscopy and Density Functional Theoretical Study

“…For the following more than half a century, a great many experimentally pioneering works have opened the updated window for search of new Ng compounds in this field. A great number of chemically bound coumpounds containing lighter noble gas atoms (NGs) have been synthesized and characterized. − It has also been reported that NGs can chemically bond to metal in forming noble gas–metal complexes. The M­(CO) 5 (M = Cr, Mo, W) are coordinated by one NG in forming the M­(CO) 5 (Ng) (Ng = Ar, Kr, Xe) complexes in noble gas matrixes. − The of Fe­(CO) 5 reacts photochemically with Xe to form Fe­(CO) 4 (Xe) in supercritical liquid Xe solution .…”