#196 – update
F23
Tomas, one of our readers of this blog, identified an error concerning the space group list project. As he correctly pointed out, the entry of #196 (F23) was wrong as the coordinate set of the solvent free zink sulfate clearly shows F-43m symmetry (#216).
I have informed the FIZ Karlsruhe and they will delete this wrong entry in their ICSD database with the next update/release.
So, the new (approved) entry for #196 is:
tetrakis((18-Crown-6)-thallium) tetrachloro-manganese bis(tetrachloro-thallium)
Coordination Characteristics of Divalent Tetrahedral (Td and D2d) Tetrahalometalate Anions of 3d Elements and Solid-State 18C6 Reorientations
N.S. Fender, S.S. Finegan, D. Miller. M. Mitchell, I.A. Kahwa, F.R. Fronczek
Inorg. Chem., 1994, 33 (18), pp 4002–4008
http://dx.doi.org/10.1021/ic00096a026
CIF
http://1drv.ms/1nJuoOs
MnCl4 tetrahedra (purple)
TlCl4 tetrahedra (blue)
https://skfb.ly/BuHu
Also the poster of the Space group list project was updated, which you can download here:
https://crystalsymmetry.wordpress.com/2014/08/15/the-space-group-list-project-as-a-poster/