checkCIF procedure
PLAT115
PLAT115 Type_5 Test for non-crystallographic centre of symmetry [0, 100]
Tests for missed symmetry are done with ADDSYM, an expanded MISSYM (C) clone. This ALERT reports on local inversion symmetry, not compatible with the reported space-group symmetry. Note: H-atoms and disordered atoms are not taken into account in the test.