1. Enikolopov Institute of Synthetic Polymer Materials, Russian Academy of Sciences, Moscow 117393, Russia
2. National Research Centre “Kurchatov Institute”, Moscow 123182, Russia
3. Shubnikov Institute of Crystallography, FNRC “Crystallography and Photonics”, Russian Academy of Sciences, Moscow 119333, Russia
4. Semenov Institute of Chemical Physics, Russian Academy of Sciences, Moscow 119991, Russia