Synthesis and single-crystal X-ray diffraction characterization of novel C-H and C-N-H compounds under high pressure up to 100 GPa

Polycyclic Aromatic Hydrocarbons (PAHs) are abundant material in Universe, but their origin remain enigmatic. Recent studies indicate that PAHs may be product of the processes inside the planetary bodies. However, behaviour of PAHs under ultra-high pressure and high temperature conditions and in different chemical environment poorly understood. Previous studies were constrained within a relatively narrow pressure range. Therefore, we propose conducting a Single-Crystal X-ray Diffraction (SCXRD) investigation of pyrene up to 100 GPa at ID11, employing laser heating techniques. Our aim is to explore novel C-H compounds as well as possible formation of C-N-H compounds at conditions of planetary interiors. The objectives of these proposed experiments include determining precise crystal structures and characterizing their crystal chemistry and compressional behaviour.