ISSN:
0044-2313
Keywords:
Acetamidinium hexafluorometallates: preparation
;
crystal structure
;
thermal decomposition
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Acetamidiniumhexafluorometallates of Aluminium, Gallium, Indium, Vanadium, Chromium, Manganese, Iron and CobaltThe title compounds were crystallized from F-containing aqueous solutions of their hexafluoro-metallate acids by adding acetamidine. Their unit cells were determined and the thermal decomposition was investigated thermoanalytically. The crystal structure of [CH3C(NH2)2]3AlF6 was determined: Space group P41212/P43212, a = 8,987(1), c = 17,894(3) Å, R = 0,054. The unit cell parameters: \documentclass{article}\pagestyle{empty}\begin{document}$$ \begin{array}{*{20}c} {{\rm [CH}_{\rm 3} {\rm C(NH}_{\rm 2})_2]_3 {\rm GaF}_{\rm 6} :\,{\rm a}\,{\rm = }\,{\rm 9,078(1),}\,{\rm c}\,{\rm = }\,{\rm 18,104(2)}\,{\rm {\AA};}} \hfill \\ {{\rm [CH}_{\rm 3} {\rm C(NH}_{\rm 2})_2]_3 {\rm InF}_{\rm 6} :\,{\rm a}\,{\rm = }\,{\rm 9,277(1),}\,{\rm c}\,{\rm = }\,{\rm 18,545(2)}\,{\rm {\AA};}} \hfill \\ {{\rm [CH}_{\rm 3} {\rm C(NH}_{\rm 2})_2]_3 {\rm VF}_{\rm 6} :\,{\rm a}\,{\rm = }\,{\rm 9,1201(6),}\,{\rm c}\,{\rm = }\,{\rm 18,2197(6)}\,{\rm {\AA};}} \hfill \\ {{\rm [CH}_{\rm 3} {\rm C(NH}_{\rm 2})_2]_3 {\rm CrF}_{\rm 6} :\,{\rm a}\,{\rm = }\,{\rm 9,089(1),}\,{\rm c}\,{\rm = }\,{\rm 18,132(2)}\,{\rm {\AA};}} \hfill \\ {{\rm [CH}_{\rm 3} {\rm C(NH}_{\rm 2})_2]_3 {\rm MnF}_{\rm 6} :\,{\rm a}\,{\rm = }\,{\rm 9,109(2),}\,{\rm c}\,{\rm = }\,{\rm 18,241(3)}\,{\rm {\AA};}} \hfill \\ {{\rm [CH}_{\rm 3} {\rm C(NH}_{\rm 2})_2]_3 {\rm FeF}_{\rm 6} :\,{\rm a}\,{\rm = }\,{\rm 9,122(2),}\,{\rm c}\,{\rm = }\,{\rm 18,189(6)}\,{\rm {\AA};}} \hfill \\ {{\rm [CH}_{\rm 3} {\rm C(NH}_{\rm 2})_2]_3 {\rm CoF}_{\rm 6} :\,{\rm a}\,{\rm = }\,{\rm 9,084(1),}\,{\rm c}\,{\rm = }\,{\rm 18,130(4)}\,{\rm {\AA}}} \hfill \\ \end{array} $$\end{document}.
Notes:
Die Titelverbindungen wurden aus den HF enthaltenden, wäßrigen Lösungen der jeweiligen Hexafluorometallatsäuren nach Zugabe von Acetamidin auskristallisiert, ihre Gitterkonstanten bestimmt und der Abbau thermoanalytisch verfolgt.Vom [CH3C(NH2)2]3AlF6 wurde die Kristallstruktur bestimmt: Raumgruppe P41212/P43212, a = 8,987(1), c = 17,894(3) Å, R = 0,054.\documentclass{article}\pagestyle{empty}\begin{document}$$ \begin{array}{*{20}c} {{\rm [CH}_{\rm 3} {\rm C(NH}_{\rm 2})_2]_3 {\rm GaF}_{\rm 6} :\,{\rm a}\,{\rm = }\,{\rm 9,078(1),}\,{\rm c}\,{\rm = }\,{\rm 18,104(2)}\,{\rm {\AA};}} \hfill \\ {{\rm [CH}_{\rm 3} {\rm C(NH}_{\rm 2})_2]_3 {\rm InF}_{\rm 6} :\,{\rm a}\,{\rm = }\,{\rm 9,277(1),}\,{\rm c}\,{\rm = }\,{\rm 18,545(2)}\,{\rm {\AA};}} \hfill \\ {{\rm [CH}_{\rm 3} {\rm C(NH}_{\rm 2})_2]_3 {\rm VF}_{\rm 6} :\,{\rm a}\,{\rm = }\,{\rm 9,1201(6),}\,{\rm c}\,{\rm = }\,{\rm 18,2197(6)}\,{\rm {\AA};}} \hfill \\ {{\rm [CH}_{\rm 3} {\rm C(NH}_{\rm 2})_2]_3 {\rm CrF}_{\rm 6} :\,{\rm a}\,{\rm = }\,{\rm 9,089(1),}\,{\rm c}\,{\rm = }\,{\rm 18,132(2)}\,{\rm {\AA};}} \hfill \\ {{\rm [CH}_{\rm 3} {\rm C(NH}_{\rm 2})_2]_3 {\rm MnF}_{\rm 6} :\,{\rm a}\,{\rm = }\,{\rm 9,109(2),}\,{\rm c}\,{\rm = }\,{\rm 18,241(3)}\,{\rm {\AA};}} \hfill \\ {{\rm [CH}_{\rm 3} {\rm C(NH}_{\rm 2})_2]_3 {\rm FeF}_{\rm 6} :\,{\rm a}\,{\rm = }\,{\rm 9,122(2),}\,{\rm c}\,{\rm = }\,{\rm 18,189(6)}\,{\rm {\AA};}} \hfill \\ {{\rm [CH}_{\rm 3} {\rm C(NH}_{\rm 2})_2]_3 {\rm CoF}_{\rm 6} :\,{\rm a}\,{\rm = }\,{\rm 9,084(1),}\,{\rm c}\,{\rm = }\,{\rm 18,130(4)}\,{\rm {\AA}}} \hfill \\ \end{array} $$\end{document}.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19936191119
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