fig2

Figure 2. (A-F) PXRD patterns of five title compounds in the Ca_9-xYb_xZn_4.5-yCu_ySb₉ (0.57(2) ≤ x ≤ 1.28(2), 0 ≤ y ≤ 0.15) system. A PXRD pattern calculated from the SXRD data of CaZn_4.48(2)Sb₉ is also provided for a comparison purpose.