More space-group changes

Revisions are made to the space groups in ten published X-ray diffraction studies. In five cases the revisions entail increases in the Laue symmetry and, except for repositioning a nitrate group in one compound, there are no important changes in the interatomic distances and angles. In four other cases, centers of symmetry have been added; in one of these cases further refinement has led to appreciable changes in the bond lengths and angles, while in the other three cases the original mtens1ty data were not available and further refinement could not be carried out. In the tenth case, both the Laue symmetry has been increased and a center of symmetry has been added, and the structure further refined.