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Einkristalle von (NH 4 )ZrF 5 und (NH 4 )HfF 5 durch Oxidation von Zirconium und Hafnium mit (NH 4 )HF 2
Author(s) -
Plitzko Christian,
Meyer Gerd
Publication year - 1998
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/(sici)1521-3749(199802)624:2<169::aid-zaac169>3.0.co;2-t
Subject(s) - zirconium , hafnium , monoclinic crystal system , monel , crystal structure , materials science , metal , chemistry , nuclear chemistry , inorganic chemistry , crystallography , metallurgy , corrosion
Synthesis and Crystal Structure of (NH 4 )ZrF 5 and (NH 4 )HfF 5 by Oxidation of Zirconium and Hafnium with (NH 4 )HF 2 Colourless single crystals of NH 4 ZrF 5 ( 1 ) and NH 4 HfF 5 ( 2 ) are obtained by reaction of the respective metal powders with NH 4 HF 2 (4 weeks) in sealed Monel metal containers at 450 °C. They crystallize with the monoclinic space group P2 1 /c with ( 1 / 2 ) a = 778.16(14)/786.35(12), b = 790.75(9)/786.64(8), c = 792.44(12)/786.01(12), β = 119.177(12)/119.828(10) isotypic to TlZrF 5 .