KYb2F7 crystallizes in the monoclinic P2 space group. K(1) is bonded in a distorted q6 geometry to two equivalent F(3), four equivalent F(1), and four equivalent F(2) atoms. Yb(1) is bonded to one F(4), two equivalent F(1), two equivalent F(2), and two equivalent F(3) atoms to form a mixture of edge and corner-sharing YbF7 pentagonal bipyramids. There are four inequivalent F sites. In the first F site, F(1) is bonded in a distorted water-like geometry to two equivalent K(1) and two equivalent Yb(1) atoms. In the second F site, F(2) is bonded in a 4-coordinate geometry to two equivalent K(1) and two equivalent Yb(1) atoms. In the third F site, F(3) is bonded in a distorted T-shaped geometry to one K(1) and two equivalent Yb(1) atoms. In the fourth F site, F(4) is bonded in a linear geometry to two equivalent Yb(1) atoms.
KYb2F7 crystallizes in the monoclinic P2 space group. K(1) is bonded in a distorted q6 geometry to two equivalent F(3), four equivalent F(1), and four equivalent F(2) atoms. Both K(1)-F(3) bond lengths are 2.89 Å. There are two shorter (3.12 Å) and two longer (3.13 Å) K(1)-F(1) bond lengths. All K(1)-F(2) bond lengths are 2.86 Å. Yb(1) is bonded to one F(4), two equivalent F(1), two equivalent F(2), and two equivalent F(3) atoms to form a mixture of edge and corner-sharing YbF7 pentagonal bipyramids. The Yb(1)-F(4) bond length is 2.25 Å. There is one shorter (2.27 Å) and one longer (2.30 Å) Yb(1)-F(1) bond length. There is one shorter (2.25 Å) and one longer (2.29 Å) Yb(1)-F(2) bond length. Both Yb(1)-F(3) bond lengths are 2.19 Å. There are four inequivalent F sites. In the first F site, F(1) is bonded in a distorted water-like geometry to two equivalent K(1) and two equivalent Yb(1) atoms. In the second F site, F(2) is bonded in a 4-coordinate geometry to two equivalent K(1) and two equivalent Yb(1) atoms. In the third F site, F(3) is bonded in a distorted T-shaped geometry to one K(1) and two equivalent Yb(1) atoms. In the fourth F site, F(4) is bonded in a linear geometry to two equivalent Yb(1) atoms.