Metal fluoride nanotubes featuring square-planar building blocks in a high-pressure polymorph of AgF2

A. Grzelak; J. Gawraczyński; T. Jaroń; D. Kurzydłowski; Z. Mazej; P. J. Leszczyński; V. B. Prakapenka; M. Derzsi; V. V. Struzhkin; W. Grochala

doi:10.1039/C7DT03178E

Metal fluoride nanotubes featuring square-planar building blocks in a high-pressure polymorph of AgF₂†‡

A. Grzelak,^ab J. Gawraczyński,^ab T. Jaroń,^bc D. Kurzydłowski,

^b Z. Mazej,

^d P. J. Leszczyński,^b V. B. Prakapenka,^e M. Derzsi,*^b V. V. Struzhkin*^c and W. Grochala

*^b

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^a Faculty of Chemistry, University of Warsaw, ul. Pasteura 1, 02-093 Warsaw, Poland

^b Center of New Technologies, University of Warsaw, ul. Banacha 2C, 02-097 Warsaw, Poland
E-mail: mariana@icm.edu.pl, w.grochala@cent.uw.edu.pl

^c Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road NW, Washington, DC 20015, USA
E-mail: vstruzhkin@carnegiescience.edu

^d Department of Inorganic Chemistry and Technology, Jožef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana, Slovenia

^e Center for Advanced Radiation Sources, University of Chicago, Chicago, IL 60637, USA

Abstract

At a pressure of ca. 15 GPa, AgF₂ transforms to an unprecedented orthorhombic polymorph featuring an array of tubular subunits which are built of corner sharing [AgF₄] squares. This seems to be the first type of a metal fluoride nanowire and also the only one showing rigid square planar rather than common hexagonal or octahedral moieties.

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Metal fluoride nanotubes featuring square-planar building blocks in a high-pressure polymorph of AgF₂†‡

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Metal fluoride nanotubes featuring square-planar building blocks in a high-pressure polymorph of AgF₂

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