Bilbao Crystallographic Server arrow Minimal Supergroups List Help

Minimal supergroups (of index 2, 3 and 4) of group C2 (No. 5) [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
1C2/m122ttransformation...
2C2/c152ttransformation...
3C2221202ttransformation...
4C222212ttransformation...
5F222222ttransformation...
6I222232ttransformation...
7I212121242ttransformation...
8Amm2382ttransformation...
9Aem2392ttransformation...
10Ama2402ttransformation...
11Aea2412ttransformation...
12Fmm2422ttransformation...
13Fdd2432ttransformation...
14Imm2442ttransformation...
15Iba2452ttransformation...
16Ima2462ttransformation...
17I4792ttransformation...
18I41802ttransformation...
19I-4822ttransformation...
20P3121493ttransformation...
21P3211503ttransformation...
22P31121513ttransformation...
23P31211523ttransformation...
24P32121533ttransformation...
25P32211543ttransformation...
26R321553ttransformation...
27P232ktransformation...
28C252ktransformation...
29C253ktransformation...
30C255ktransformation...
31C257ktransformation...

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

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