LaCu6 is Bergman Structure: Mg32(Al,Zn)49 Bergman-derived structured and crystallizes in the monoclinic P2_1/c space group. La(1) is bonded in a 19-coordinate geometry to three equivalent Cu(1), three equivalent Cu(2), three equivalent Cu(4), three equivalent Cu(5), three equivalent Cu(6), and four equivalent Cu(3) atoms. There are six inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to three equivalent La(1), one Cu(5), two equivalent Cu(2), two equivalent Cu(3), two equivalent Cu(4), and two equivalent Cu(6) atoms to form a mixture of distorted edge, corner, and face-sharing CuLa3Cu9 cuboctahedra. In the second Cu site, Cu(2) is bonded to three equivalent La(1), one Cu(5), two equivalent Cu(1), two equivalent Cu(3), two equivalent Cu(4), and two equivalent Cu(6) atoms to form a mixture of distorted edge, corner, and face-sharing CuLa3Cu9 cuboctahedra. In the third Cu site, Cu(3) is bonded in a 13-coordinate geometry to four equivalent La(1), one Cu(6), two equivalent Cu(1), two equivalent Cu(2), two equivalent Cu(4), and two equivalent Cu(5) atoms. In the fourth Cu site, Cu(4) is bonded to three equivalent La(1), one Cu(6), two equivalent Cu(1), two equivalent Cu(2), two equivalent Cu(3), and two equivalent Cu(5) atoms to form a mixture of distorted edge, corner, and face-sharing CuLa3Cu9 cuboctahedra. In the fifth Cu site, Cu(5) is bonded in a 11-coordinate geometry to three equivalent La(1), one Cu(1), one Cu(2), one Cu(5), one Cu(6), two equivalent Cu(3), and two equivalent Cu(4) atoms. In the sixth Cu site, Cu(6) is bonded in a 9-coordinate geometry to three equivalent La(1), one Cu(3), one Cu(4), one Cu(5), two equivalent Cu(1), and two equivalent Cu(2) atoms.
LaCu6 is Bergman Structure: Mg32(Al,Zn)49 Bergman-derived structured and crystallizes in the monoclinic P2_1/c space group. La(1) is bonded in a 19-coordinate geometry to three equivalent Cu(1), three equivalent Cu(2), three equivalent Cu(4), three equivalent Cu(5), three equivalent Cu(6), and four equivalent Cu(3) atoms. There are a spread of La(1)-Cu(1) bond distances ranging from 3.13-3.29 Å. There are a spread of La(1)-Cu(2) bond distances ranging from 3.03-3.28 Å. There are a spread of La(1)-Cu(4) bond distances ranging from 3.15-3.30 Å. There are a spread of La(1)-Cu(5) bond distances ranging from 2.89-2.99 Å. There are a spread of La(1)-Cu(6) bond distances ranging from 2.89-3.01 Å. There are a spread of La(1)-Cu(3) bond distances ranging from 3.12-3.39 Å. There are six inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to three equivalent La(1), one Cu(5), two equivalent Cu(2), two equivalent Cu(3), two equivalent Cu(4), and two equivalent Cu(6) atoms to form a mixture of distorted edge, corner, and face-sharing CuLa3Cu9 cuboctahedra. The Cu(1)-Cu(5) bond length is 2.42 Å. There is one shorter (2.51 Å) and one longer (2.58 Å) Cu(1)-Cu(2) bond length. There is one shorter (2.66 Å) and one longer (2.69 Å) Cu(1)-Cu(3) bond length. There is one shorter (2.48 Å) and one longer (2.51 Å) Cu(1)-Cu(4) bond length. There is one shorter (2.42 Å) and one longer (2.56 Å) Cu(1)-Cu(6) bond length. In the second Cu site, Cu(2) is bonded to three equivalent La(1), one Cu(5), two equivalent Cu(1), two equivalent Cu(3), two equivalent Cu(4), and two equivalent Cu(6) atoms to form a mixture of distorted edge, corner, and face-sharing CuLa3Cu9 cuboctahedra. The Cu(2)-Cu(5) bond length is 2.57 Å. There is one shorter (2.63 Å) and one longer (2.83 Å) Cu(2)-Cu(3) bond length. There is one shorter (2.42 Å) and one longer (2.50 Å) Cu(2)-Cu(4) bond length. There is one shorter (2.48 Å) and one longer (2.54 Å) Cu(2)-Cu(6) bond length. In the third Cu site, Cu(3) is bonded in a 13-coordinate geometry to four equivalent La(1), one Cu(6), two equivalent Cu(1), two equivalent Cu(2), two equivalent Cu(4), and two equivalent Cu(5) atoms. The Cu(3)-Cu(6) bond length is 2.58 Å. There is one shorter (2.71 Å) and one longer (2.82 Å) Cu(3)-Cu(4) bond length. There is one shorter (2.55 Å) and one longer (2.81 Å) Cu(3)-Cu(5) bond length. In the fourth Cu site, Cu(4) is bonded to three equivalent La(1), one Cu(6), two equivalent Cu(1), two equivalent Cu(2), two equivalent Cu(3), and two equivalent Cu(5) atoms to form a mixture of distorted edge, corner, and face-sharing CuLa3Cu9 cuboctahedra. The Cu(4)-Cu(6) bond length is 2.51 Å. There is one shorter (2.48 Å) and one longer (2.61 Å) Cu(4)-Cu(5) bond length. In the fifth Cu site, Cu(5) is bonded in a 11-coordinate geometry to three equivalent La(1), one Cu(1), one Cu(2), one Cu(5), one Cu(6), two equivalent Cu(3), and two equivalent Cu(4) atoms. The Cu(5)-Cu(5) bond length is 3.04 Å. The Cu(5)-Cu(6) bond length is 2.89 Å. In the sixth Cu site, Cu(6) is bonded in a 9-coordinate geometry to three equivalent La(1), one Cu(3), one Cu(4), one Cu(5), two equivalent Cu(1), and two equivalent Cu(2) atoms.