#51
Pmma
Example – BaThBr6
Studies on ABX6 compounds. II. The BaThBr6 structure type
Beck, H.P.;Kuehn, F.
Zeitschrift fuer Anorg. und Allgemeine Chemie 621 (1995) 1649-1654
CIF
https://www.dropbox.com/s/a6agecy9drk593w/4102404.cif
BaBr6 trigonal prisms (green)
ThBr6 trigonal prisms (blue)