ISSN:
1434-4475
Schlagwort(e):
(NH3OH)2ZrF6
;
(NH3OH)3ZrF7
;
Hydroxylammonium compounds
;
Fluorozirconates
;
Crystal structure
;
IR spectroscopy
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Chemie und Pharmazie
Notizen:
Summary Hydroxylammonium fluorozirconates have been investigated. Two new microcristalline phases have been isolated from aqueous solutions: (NH3OH)2ZrF6 (1) and (NH3OH)3ZrF7 (2). The crystals were prepared by slow evaporation of the solution of NH2OH, Zr, and HF. Different compositions of the crystals were achieved by varying the molar ratios of the components. They were characterized by thermal analysis, vibrational spectroscopy, and structure (single crystal x-ray methods). (NH3OH)2ZrF6 (1) crystallizes triclinic, P $$\overline 1 $$ (No.: 2),a=7.400(2),b=7.609(2),c=7.887(2) Å, α=57.29(3)°, β=62.16(3)°, γ=67.83(2)°. (NH3OH)3ZrF7 (2) crystallizes triclinic, P $$\overline 1 $$ (No.: 2),a=7.128(1),b=7.989(1),c=8.888(1) Å, α=109.72(1)°, β=91.01(1)°, γ=104.27(1)°.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00807057
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