High‐Pressure Synthesis of Cobalt Polynitrides: Unveiling Intriguing Crystal Structures and Nitridation Behavior

A series of cobalt polynitrides has been discovered by using laser-heated diamond anvil cells under high pressure that demonstrate an increasing degree of nitrogen polymerization with increasing pressure. Synthesis under high pressure and high temperature, coupled with single-crystal synchrotron X-ray diffraction and micro-Raman imaging spectroscopy, offers significant advantages in elucidating the crystal structures of these nitrides along with the prospect of recovering of these materials under ambient conditions. More information can be found in the Research Article by H. Chen, A. F. Goncharov, and co-workers (DOI: 10.1002/chem.202400536).