AM_CmSe2
Formula: Se2 Cm
Name: CmSe2
Unit cell: 4.096 4.096 8.369 90.0 90.0 90.0 , V=140.41
Space group: P4/NMM (129)

Pearson W B , Zeitschrift fur Kristallographie , 171 (1985) p.23-39, The Cu2Sb and related structures