ISSN:
0044-2313
Keywords:
Guanidinium hexafluorometallates
;
guanidinium pentafluorooxoniobate
;
guanidinium tetrafluorodioxowolframate
;
preparation
;
crystal structure
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Guanidinium Hexafluorometallates of Titanium, Silicon, Germanium, and Tin. Guanidinium Pentafluorooxoniobate and Guanidinium TetrafluorodioxowolframateThe title compounds were crystallized from the aqueous solutions of their fluorometallate respectively oxofluorometallate acids by adding of guanidinium fluoride solution. Their unit cells were determined and for [C(NH2)3]2 TiF6 its crystal structure was determined: s. g. Cm, a = 12.869 Å, b = 7.378 Å, c = 6.243 Å, β = 114.45°, layer structure, R = 0.0257. The unit cell parameters of [C(NH2)3]2 SiF6: a = 12.612 Å, b = 7.272 Å, c = 6.171 Å, β = 114.30°, of [C(NH2)3]2 GeF6: a = 12.773 Å, b = 7.343 Å, c = 6.202 Å, β = 114.38°, of [C(NH2)3]2 SnF6 : a = 12.972 Å, b = 7.439 Å, c = 6.356 Å, β = 114.14°, of [C(NH2)3]2 NbOF5:a = 12.987 Å, b = 7.425 Å, c = 6.326 Å, β = 114,25°, of [C(NH2)3]2 WO2F4:a = 12.941 Å, b = 7.396 Å, c = 6.256 Å, β = 114.33°.
Notes:
Die Titelverbindungen wurden aus den wässrigen Lösungen der jeweiligen Fluorometallat-bzw. oxofluorometallatsäuren nach Zugabe von Guanidiniumfluoridlösung als kristalline Verbindungen erhalten und ihre Gitterkonstanten bestimmt. Vom [C(NH2)3]2 Tif6 wurde die Kristallstruktur bestimmt: R.Gr. Cm, a = 12,869 Å, b = 7,378 Å, c = 6,243 Å, β = 114,45°, Schichtstruktur, R = 0,0257. Kristallographische Daten von [C(NH2)3]2 SiF6:a = 12,612 Å, b = 7,272 Å, c = 6,171 Å, β = 114,30°, von [C(NH2)3]2 GeF6:a = 12,773 Å, b = 7,343 Å, c = 6,202 Å, β = 114,38°, von [C(NH2)3]2 SnF6:a = 12,972 Å, b = 7,439 Å, c = 6,356 Å, β = 114,14°, von [C(NH2)3]2 NbOF5:a = 12,987 Å, b = 7,425 Å, c = 6,326 Å, β = 114,25°, von [C(NH2)3]2 WO2F4:a = 12,941 Å, b = 7,396 Å, c = 6,256 Å, β = 114,33°.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19916040111
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