#196 – update
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
MnCl4 tetrahedra (purple)
TlCl4 tetrahedra (blue)
Also the poster of the Space group list project was updated, which you can download here: