K2NaInSb2 crystallizes in the orthorhombic Cmce space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 7-coordinate geometry to two equivalent In(1), two equivalent Sb(2), and three equivalent Sb(1) atoms. In the second K site, K(2) is bonded in a 9-coordinate geometry to two equivalent Na(1), two equivalent In(1), two equivalent Sb(1), and three equivalent Sb(2) atoms. Na(1) is bonded in a 4-coordinate geometry to two equivalent K(2), three equivalent In(1), two equivalent Sb(1), and two equivalent Sb(2) atoms. In(1) is bonded in a 11-coordinate geometry to two equivalent K(1), two equivalent K(2), three equivalent Na(1), two equivalent Sb(1), and two equivalent Sb(2) atoms. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 9-coordinate geometry to two equivalent K(2), three equivalent K(1), two equivalent Na(1), and two equivalent In(1) atoms. In the second Sb site, Sb(2) is bonded in a 9-coordinate geometry to two equivalent K(1), three equivalent K(2), two equivalent Na(1), and two equivalent In(1) atoms.
K2NaInSb2 crystallizes in the orthorhombic Cmce space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 7-coordinate geometry to two equivalent In(1), two equivalent Sb(2), and three equivalent Sb(1) atoms. Both K(1)-In(1) bond lengths are 3.78 Å. Both K(1)-Sb(2) bond lengths are 3.75 Å. There is one shorter (3.67 Å) and two longer (3.72 Å) K(1)-Sb(1) bond lengths. In the second K site, K(2) is bonded in a 9-coordinate geometry to two equivalent Na(1), two equivalent In(1), two equivalent Sb(1), and three equivalent Sb(2) atoms. Both K(2)-Na(1) bond lengths are 3.67 Å. Both K(2)-In(1) bond lengths are 3.95 Å. Both K(2)-Sb(1) bond lengths are 3.73 Å. There are a spread of K(2)-Sb(2) bond distances ranging from 3.61-3.81 Å. Na(1) is bonded in a 4-coordinate geometry to two equivalent K(2), three equivalent In(1), two equivalent Sb(1), and two equivalent Sb(2) atoms. There is one shorter (3.54 Å) and two longer (3.55 Å) Na(1)-In(1) bond lengths. Both Na(1)-Sb(1) bond lengths are 3.12 Å. Both Na(1)-Sb(2) bond lengths are 3.21 Å. In(1) is bonded in a 11-coordinate geometry to two equivalent K(1), two equivalent K(2), three equivalent Na(1), two equivalent Sb(1), and two equivalent Sb(2) atoms. Both In(1)-Sb(1) bond lengths are 3.01 Å. Both In(1)-Sb(2) bond lengths are 2.96 Å. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 9-coordinate geometry to two equivalent K(2), three equivalent K(1), two equivalent Na(1), and two equivalent In(1) atoms. In the second Sb site, Sb(2) is bonded in a 9-coordinate geometry to two equivalent K(1), three equivalent K(2), two equivalent Na(1), and two equivalent In(1) atoms.