Bilbao Crystallographic Server arrow Minimal Supergroups List Help

Minimal supergroups (of index 2, 3 and 4) of group P21/c (No. 14) [unique axis b]

Minimal Supergroups
The list with the minimal supergroup types is given in the table. Each supergroup type is specified by its ITA number and the corresponding Hermann-Mauguin symbol. Also, the index of the supergroup and the supergroup type is given. To see all the transformation matrices that relate the supergroup of a given type with the subgroup, click on the link in the column Subgroup data.

To see all possible supergroups of a given type select the type of the supergroup, and then click over [Show]

To calculate the minimal isomorphic supergroups of index greater than seven click on the link of the index.

NHM symbolITA numberIndexTypeSubgroup data
1Pnna522ttransformation...
2Pmna532ttransformation...
3Pcca542ttransformation...
4Pbam552ttransformation...
5Pccn562ttransformation...
6Pbcm572ttransformation...
7Pnnm582ttransformation...
8Pbcn602ttransformation...
9Pbca612ttransformation...
10Pnma622ttransformation...
11Cmce642ttransformation...
12C2/m122ktransformation...
13C2/c152ktransformation...
14P21/m112ktransformation...
15P2/c132ktransformation...
16P21/c142ktransformation...
17P21/c143ktransformation...
18P21/c145ktransformation...
19P21/c147ktransformation...

If you want to calculate a minimal isomorphic supergroup of higher index choose it from here:

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