NdZn11 crystallizes in the monoclinic C2/m space group. Nd(1) is bonded in a 18-coordinate geometry to two equivalent Zn(3), four equivalent Zn(1), four equivalent Zn(2), four equivalent Zn(7), and four equivalent Zn(8) atoms. There are eight inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to two equivalent Nd(1), one Zn(1), one Zn(3), one Zn(4), one Zn(6), two equivalent Zn(2), two equivalent Zn(7), and two equivalent Zn(8) atoms to form a mixture of distorted edge, corner, and face-sharing ZnNd2Zn10 cuboctahedra. In the second Zn site, Zn(2) is bonded to two equivalent Nd(1), one Zn(2), one Zn(3), one Zn(4), one Zn(5), two equivalent Zn(1), two equivalent Zn(7), and two equivalent Zn(8) atoms to form a mixture of distorted edge, corner, and face-sharing ZnNd2Zn10 cuboctahedra. In the third Zn site, Zn(3) is bonded in a 14-coordinate geometry to two equivalent Nd(1), one Zn(5), one Zn(6), two equivalent Zn(1), two equivalent Zn(2), two equivalent Zn(4), two equivalent Zn(7), and two equivalent Zn(8) atoms. In the fourth Zn site, Zn(4) is bonded in a 10-coordinate geometry to two equivalent Zn(1), two equivalent Zn(2), two equivalent Zn(3), two equivalent Zn(7), and two equivalent Zn(8) atoms. In the fifth Zn site, Zn(5) is bonded in a 10-coordinate geometry to two equivalent Zn(3), four equivalent Zn(2), and four equivalent Zn(7) atoms. In the sixth Zn site, Zn(6) is bonded in a 10-coordinate geometry to two equivalent Zn(3), four equivalent Zn(1), and four equivalent Zn(8) atoms. In the seventh Zn site, Zn(7) is bonded to two equivalent Nd(1), one Zn(3), one Zn(4), one Zn(5), one Zn(8), two equivalent Zn(1), two equivalent Zn(2), and two equivalent Zn(7) atoms to form a mixture of distorted edge, corner, and face-sharing ZnNd2Zn10 cuboctahedra. In the eighth Zn site, Zn(8) is bonded to two equivalent Nd(1), one Zn(3), one Zn(4), one Zn(6), one Zn(7), two equivalent Zn(1), two equivalent Zn(2), and two equivalent Zn(8) atoms to form a mixture of distorted edge, corner, and face-sharing ZnNd2Zn10 cuboctahedra.
NdZn11 crystallizes in the monoclinic C2/m space group. Nd(1) is bonded in a 18-coordinate geometry to two equivalent Zn(3), four equivalent Zn(1), four equivalent Zn(2), four equivalent Zn(7), and four equivalent Zn(8) atoms. Both Nd(1)-Zn(3) bond lengths are 3.38 Å. There are two shorter (3.24 Å) and two longer (3.37 Å) Nd(1)-Zn(1) bond lengths. There are two shorter (3.24 Å) and two longer (3.36 Å) Nd(1)-Zn(2) bond lengths. There are two shorter (3.24 Å) and two longer (3.37 Å) Nd(1)-Zn(7) bond lengths. There are two shorter (3.23 Å) and two longer (3.36 Å) Nd(1)-Zn(8) bond lengths. There are eight inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to two equivalent Nd(1), one Zn(1), one Zn(3), one Zn(4), one Zn(6), two equivalent Zn(2), two equivalent Zn(7), and two equivalent Zn(8) atoms to form a mixture of distorted edge, corner, and face-sharing ZnNd2Zn10 cuboctahedra. The Zn(1)-Zn(1) bond length is 2.85 Å. The Zn(1)-Zn(3) bond length is 2.84 Å. The Zn(1)-Zn(4) bond length is 2.57 Å. The Zn(1)-Zn(6) bond length is 2.59 Å. There is one shorter (2.56 Å) and one longer (2.58 Å) Zn(1)-Zn(2) bond length. There is one shorter (2.62 Å) and one longer (2.66 Å) Zn(1)-Zn(7) bond length. There is one shorter (2.63 Å) and one longer (2.94 Å) Zn(1)-Zn(8) bond length. In the second Zn site, Zn(2) is bonded to two equivalent Nd(1), one Zn(2), one Zn(3), one Zn(4), one Zn(5), two equivalent Zn(1), two equivalent Zn(7), and two equivalent Zn(8) atoms to form a mixture of distorted edge, corner, and face-sharing ZnNd2Zn10 cuboctahedra. The Zn(2)-Zn(2) bond length is 2.86 Å. The Zn(2)-Zn(3) bond length is 2.84 Å. The Zn(2)-Zn(4) bond length is 2.57 Å. The Zn(2)-Zn(5) bond length is 2.59 Å. There is one shorter (2.62 Å) and one longer (2.94 Å) Zn(2)-Zn(7) bond length. There is one shorter (2.63 Å) and one longer (2.66 Å) Zn(2)-Zn(8) bond length. In the third Zn site, Zn(3) is bonded in a 14-coordinate geometry to two equivalent Nd(1), one Zn(5), one Zn(6), two equivalent Zn(1), two equivalent Zn(2), two equivalent Zn(4), two equivalent Zn(7), and two equivalent Zn(8) atoms. The Zn(3)-Zn(5) bond length is 2.76 Å. The Zn(3)-Zn(6) bond length is 2.75 Å. Both Zn(3)-Zn(4) bond lengths are 2.76 Å. Both Zn(3)-Zn(7) bond lengths are 2.85 Å. Both Zn(3)-Zn(8) bond lengths are 2.83 Å. In the fourth Zn site, Zn(4) is bonded in a 10-coordinate geometry to two equivalent Zn(1), two equivalent Zn(2), two equivalent Zn(3), two equivalent Zn(7), and two equivalent Zn(8) atoms. Both Zn(4)-Zn(7) bond lengths are 2.59 Å. Both Zn(4)-Zn(8) bond lengths are 2.59 Å. In the fifth Zn site, Zn(5) is bonded in a 10-coordinate geometry to two equivalent Zn(3), four equivalent Zn(2), and four equivalent Zn(7) atoms. All Zn(5)-Zn(7) bond lengths are 2.57 Å. In the sixth Zn site, Zn(6) is bonded in a 10-coordinate geometry to two equivalent Zn(3), four equivalent Zn(1), and four equivalent Zn(8) atoms. All Zn(6)-Zn(8) bond lengths are 2.57 Å. In the seventh Zn site, Zn(7) is bonded to two equivalent Nd(1), one Zn(3), one Zn(4), one Zn(5), one Zn(8), two equivalent Zn(1), two equivalent Zn(2), and two equivalent Zn(7) atoms to form a mixture of distorted edge, corner, and face-sharing ZnNd2Zn10 cuboctahedra. The Zn(7)-Zn(8) bond length is 2.86 Å. There is one shorter (2.56 Å) and one longer (2.58 Å) Zn(7)-Zn(7) bond length. In the eighth Zn site, Zn(8) is bonded to two equivalent Nd(1), one Zn(3), one Zn(4), one Zn(6), one Zn(7), two equivalent Zn(1), two equivalent Zn(2), and two equivalent Zn(8) atoms to form a mixture of distorted edge, corner, and face-sharing ZnNd2Zn10 cuboctahedra. There is one shorter (2.56 Å) and one longer (2.58 Å) Zn(8)-Zn(8) bond length.