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Crystal Structures of (Et 4 N) 3 M 2 F 9 (M = V, Cr, Fe) determined by X‐Ray Single‐Crystal and Powder Diffraction: A New Structure Type for A 3 M 2 X 9 Compounds
Author(s) -
Krämer Karl W.,
Schenker Ralph,
Hauser Jürg,
Weihe Høgni,
Güdel Hans U.,
Bürgi HansBeat
Publication year - 2001
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 - 10.1002/1521-3749(200111)627:11<2511::aid-zaac2511>3.0.co;2-j
Subject(s) - crystallography , isostructural , crystal structure , chemistry , structure type , hexagonal crystal system , single crystal , x ray , x ray crystallography , powder diffraction , diffraction , stereochemistry , physics , optics , quantum mechanics
The syntheses and X‐ray structure determinations of single crystals and powders are reported for the compounds (Et 4 N) 3 M 2 F 9 (M = V 3+ , Cr 3+ , Fe 3+ ). The compounds are isostructural and represent a new structure type for A 3 M 2 X 9 compounds. They crystallize in the hexagonal space group P6 3 /m with Z = 2. Their lattice parameters are (Et 4 N) 3 V 2 F 9 : a = 13.3017(3), c = 10.7714(2) Å; (Et 4 N) 3 Cr 2 F 9 : a = 13.2691(3), c = 10.7148(3) Å; and (Et 4 N) 3 Fe 2 F 9 : a = 13.3040(3), c = 10.7650(3) Å.