Cr crystallizes in the tetragonal P4_2/mnm space group. There are four inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a 13-coordinate geometry to one Cr(1), two equivalent Cr(2), four equivalent Cr(3), and six equivalent Cr(4) atoms. In the second Cr site, Cr(4) is bonded in a 13-coordinate geometry to two equivalent Cr(4), three equivalent Cr(1), four equivalent Cr(2), and four equivalent Cr(3) atoms. In the third Cr site, Cr(2) is bonded in a 14-coordinate geometry to one Cr(1), four equivalent Cr(3), four equivalent Cr(4), and five equivalent Cr(2) atoms. In the fourth Cr site, Cr(3) is bonded in a distorted q6 geometry to one Cr(3), two equivalent Cr(1), four equivalent Cr(2), and four equivalent Cr(4) atoms.
Cr crystallizes in the tetragonal P4_2/mnm space group. There are four inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a 13-coordinate geometry to one Cr(1), two equivalent Cr(2), four equivalent Cr(3), and six equivalent Cr(4) atoms. The Cr(1)-Cr(1) bond length is 2.50 Å. Both Cr(1)-Cr(2) bond lengths are 2.40 Å. All Cr(1)-Cr(3) bond lengths are 2.62 Å. There are two shorter (2.80 Å) and four longer (2.83 Å) Cr(1)-Cr(4) bond lengths. In the second Cr site, Cr(4) is bonded in a 13-coordinate geometry to two equivalent Cr(4), three equivalent Cr(1), four equivalent Cr(2), and four equivalent Cr(3) atoms. There is one shorter (2.24 Å) and one longer (2.32 Å) Cr(4)-Cr(4) bond length. There are two shorter (2.71 Å) and two longer (2.73 Å) Cr(4)-Cr(2) bond lengths. There are two shorter (2.43 Å) and two longer (2.55 Å) Cr(4)-Cr(3) bond lengths. In the third Cr site, Cr(2) is bonded in a 14-coordinate geometry to one Cr(1), four equivalent Cr(3), four equivalent Cr(4), and five equivalent Cr(2) atoms. There are a spread of Cr(2)-Cr(3) bond distances ranging from 2.46-2.57 Å. There is one shorter (2.25 Å) and four longer (2.78 Å) Cr(2)-Cr(2) bond lengths. In the fourth Cr site, Cr(3) is bonded in a distorted q6 geometry to one Cr(3), two equivalent Cr(1), four equivalent Cr(2), and four equivalent Cr(4) atoms. The Cr(3)-Cr(3) bond length is 2.30 Å.