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The ammonium chromium(III) alum NH4Cr(SO4)2·12H2O

✍ Scribed by Rempfer, Nora ;Lerner, Hans-Wolfram ;Bolte, Michael


Publisher
International Union of Crystallography
Year
2004
Tongue
English
Weight
161 KB
Volume
60
Category
Article
ISSN
1600-5368

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✦ Synopsis


Single-crystal X-ray study T = 100 K Mean '(S±O) = 0.001 A Ê Disorder in solvent or counterion R factor = 0.019 wR factor = 0.051 Data-to-parameter ratio = 12.3 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.


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(NH4)2(NH3(CH2)6NH3)4[H2W12O42]·8H2O: a
✍ Gainsford, Graeme J. ;Robinson, Natalie ;Tallon, J. L. 📂 Article 📅 2002 🏛 International Union of Crystallography 🌐 English ⚖ 399 KB

A novel ammonium 1,6-hexanediammonium dodecatungstate, (NH 4 ) 2 (NH 3 (CH 2 ) 6 NH 3 ) 4 [H 2 W 12 O 42 ]Á8H 2 O, contains centrosymmetric [H 2 W 12 O 42 ] 10À anions separated by the ammonium and 1,6-hexanediammonium cations, and water molecules, in a pseudo-layer structure.