“…[
31 ] The discovery of the new material, described as Yb 10 MnSb 9 (with some partial occupancy of Yb and Mn sites and a composition closer to Yb 10.5 MnSb 9 ) in 2021 introduces a new phase to the Yb‐Mn‐Sb ternary system. [
32,33 ] This material has a complex crystal structure with both isolated Sb 3− anions as well as
polyanion dimers and edge‐sharing pairs of MnSb 4 tetrahedra which is essentially the same as the structure reported here, shown in Figure 1 . This crystal structure belongs to the P 4 2 / mnm space group, which is the same as in other similar reported Ca‐containing Zintl antimonides, including Ca 10 M Sb 9 ( M = Ga, In, Mn, Zn) [
34 ] and A 2 Ca 10 Sb 9 ( A = Li, Mg).…”