The compound Cu3ZnSb adopts tetragonal crystal system with the space group P4/nmm (129), which contains 10 atoms in the unit cell that are distributed among 4 crystallographically independent positions (TiAl3Ge-type.) The overall structure can be described as alternating Cu2Sb and CuZn subunits. The ordering between the neighboring Cu and Zn atoms in Cu3ZnSb is remarkable, and it is one of the rarest examples of ordering between Cu and Zn in ternary intermetallic compounds. Interestingly, the ordering present in binary CuZn and Cu2Sb is retained in Cu3ZnSb .