Acta Crystallographica Section C

Crystal Structure Communications

Volume 69, Part 4 (April 2013)

inorganic compounds

Acta Cryst. (2013). C69, 330-333    [ doi:10.1107/S0108270113005969 ]

Fe2(SO4)3·H2SO4·28H2O, a low-temperature water-rich iron(III) sulfate

H. Schmidt, E. Hennings, P. Zürner and W. Voigt

Abstract: The title compound, diiron(III) trisulfate-sulfuric acid-water (1/1/28), has been prepared at temperatures between 235 and 239 K from acid solutions of Fe2(SO4)3. Studies of the compound at 100 and 200 K are reported. The analysis reveals the structural features of an alum, (H5O2)Fe(SO4)2·12H2O. The Fe(H2O)6 unit is located on a centre of inversion at ({1 \over 2}, 0, {1 \over 2}), while the H5O2+ cation is located about an inversion centre at ({1 \over 2}{1 \over 2}{1 \over 2}). The compound thus represents the first oxonium alum, although the unit cell is ortho­rhom­bic.

Formula: Fe2(SO4)3·H2SO4·28H2O at 100 and 200 K

hkldisplay filedownload file

Structure factor file (CIF format) (85.8 kbytes)
[ doi:10.1107/S0108270113005969/ov3022I_100Ksup4.hkl ]
Contains datablock I_100K

hkldisplay filedownload file

Structure factor file (CIF format) (85.7 kbytes)
[ doi:10.1107/S0108270113005969/ov3022I_200Ksup5.hkl ]
Contains datablock I_200K


To open or display or play some files, you may need to set your browser up to use the appropriate software. See the full list of file types for an explanation of the different file types and their related mime types and, where available links to sites from where the appropriate software may be obtained.

The download button will force most browsers to prompt for a file name to store the data on your hard disk.

Where possible, images are represented by thumbnails.

 bibliographic record in  format

  Find reference:   Volume   Page   
  Search:     From   to      Advanced search

Copyright © International Union of Crystallography
IUCr Webmaster