Citation: Grzelak, A.; Gawraczy\'nski, J.; Jaro\'n, T.; Kurzyd\/lowski, D.; Mazej, Z.; Leszczy\'nski, P. J.; Prakapenka, V. B.; Derzsi, M.; Struzhkin, V. V.; Grochala, W. (2017). Metal fluoride nanotubes featuring square-planar building blocks in a high-pressure polymorph of AgF2. Dalton Trans., , pp. -.