(Return link to main list of space groups in standard settings.)
| (a). P 42 / n m c with origin at -4m2 and -1 at 1/4,1/4,1/4. |
| (b). P 42 / n m c with origin at -1 and -4m2 at 1/4,3/4,1/4. |
| (c). P 42 / n m c with origin at -1 and -4m2 at 1/4,1/4,1/4. |
| (d). P 42 / n m c with origin at 42/n and -1 at 1/4,1/4,0. |