Untersuchungen der Hydroxylammonium-Fluorozirconate(IV) |
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Authors: | I Ban L Golič S Milićev B Volavšek |
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Institution: | (1) Fakultät für Chemie und Chemische Technologie, Universität Maribor, SLO-62000 Maribor, Slovenia;(2) Fakultät für Chemie und Chemische Technologie, Universität Ljubljana, SLO-61000 Ljubljana, Slovenia;(3) Institut Joef Stefan, Universität Ljubljana, SLO-61111 Lijubljana, Slovenia |
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Abstract: | 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
(No.: 2),a=7.400(2),b=7.609(2),c=7.887(2) Å, =57.29(3)°, =62.16(3)°, =67.83(2)°. (NH3OH)3ZrF7 (2) crystallizes triclinic, P
(No.: 2),a=7.128(1),b=7.989(1),c=8.888(1) Å, =109.72(1)°, =91.01(1)°, =104.27(1)°. |
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Keywords: | (NH3OH)2ZrF6 (NH3OH)3ZrF7 Hydroxylammonium compounds Fluorozirconates Crystal structure IR spectroscopy |
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