High-pressure behavior of pyrene up to 70 GPa

Pyrene (C16H10), a representative of polycyclic aromatic hydrocarbons (PAHs), provides an attractive molecular arrangement for examining high pressure structural and chemical stability in aromatic compounds. Previous studies were limited to a few GPa small pressure range. Here, we propose a single-crystal X-ray diffraction (SCXRD) study of pyrene up to 70 GPa at ID15b. Aims of proposed experiments are investigations of pressure induced phase transformations and possible polymerization of pyrene, accurate structures of polymorphs, and characterisation of their crystal chemistry and compressional behaviour.