Bilbao Crystallographic Server arrow Minimal Supergroups List Help

Minimal supergroups (of index 2, 3 and 4) of group Pm (No. 6) [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
1P2/m102ttransformation...
2P21/m112ttransformation...
3Pmm2252ttransformation...
4Pmc21262ttransformation...
5Pma2282ttransformation...
6Pmn21312ttransformation...
7Amm2382ttransformation...
8Ama2402ttransformation...
9P-61743ttransformation...
10Cm82ktransformation...
11Pm62ktransformation...
12Pm63ktransformation...
13Pm65ktransformation...
14Pm67ktransformation...

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

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