Synthesis and crystal structure of α-Ba2ZrF8 and Pb2ZrF8 determined ab initio from synchrotron and neutron powder diffraction data

Synthesis, structure and dehydrogenation of zirconium borohydride octaammoniate

“…1). Such coordination can be found in some fluorides of Zr such as Ba 2 ZrF 8 40 and telurides of Zr such as ZrTe 5 . 41 The Zr[NH 3 ] 8 side-bicapped trigonal prism are packed in ab-layers in a hexagonal pattern which are then stacked along the c-axis (Fig.…”

High-temperature monoclinic α-SrHfF6, and isostructural α-SrZrF6: associating Hf2F12bipolyhedra and SrF8snub disphenoids

“…(i) a high-temperature phase, crystallizing in the orthorhombic system (Ratnikova et al, 1980), likely structurally derived from the tetragonal Ba 3.768 Zr 2.116 F 16 structure type (Laval & Frit, 1980); (ii) a low-temperature domain characterized by the general formula Sr 1-x Zr x F 2+2x (0.333 x 0.365), stable below 993 K. It corresponds to a complex series of microphases (Laval et al, 2018) derived from the Ba 2 ZrF 8 and Pb 2 ZrF 8 structures (Le Bail & Laval, 1998).…”

The low-temperature barium fluoridozirconate variety α-BaZr2F10

“…(ii) stoichiometric phases BaZrF 6 (three structure types: Laval et al, 1974Laval et al, , 1978Mehlhorn & Hoppe, 1976;Le Bail & Mercier, 1992), a low-temperature phase Ba 2 ZrF 8 (Le Bail & Laval, 1998) and BaZr 2 F 10 (two structure types: Laval et al, 1988;present work);…”