Formamidinhim-Hexachloroferrat(III) Synthese und Kristallstruktur / Formamidinium-Hexachloroferrate(III) Synthesis and Crystal Structure
Open Access
- 1 March 1985
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung B
- Vol. 40 (3) , 443-446
- https://doi.org/10.1515/znb-1985-0324
Abstract
[HC(NH2)2]3FeCl6 was obtained together with other products from the reaction of S4N4 with HCl in H2CCl2 in the presence of FeCl3. Its crystal structure was determined from X-ray diffraction data (473 independent observed reflexions, R = 0.047). Lattice constants: a = 961.6, c = 876.4 pm; tetragonal, space group P42/m, Z = 2. Of the two crystallographically independent formamidinium ions HC(NH2)2 ⊕, one exhibits positional disorder; the other one has C-N bond lengths of 128 pm. The FeCl6 3⊖ ions have symmetry C2h, but the deviation from Oh is small.Keywords
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