B is T-50 Boron-like structured and crystallizes in the tetragonal P4_2/nnm space group. There are four inequivalent B sites. In the first B site, B(1) is bonded in a 6-coordinate geometry to one B(3), one B(4), two equivalent B(1), and two equivalent B(2) atoms. In the second B site, B(2) is bonded in a 6-coordinate geometry to one B(3), one B(4), two equivalent B(1), and two equivalent B(2) atoms. In the third B site, B(4) is bonded in a 6-coordinate geometry to one B(3), one B(4), two equivalent B(1), and two equivalent B(2) atoms. In the fourth B site, B(3) is bonded in a 5-coordinate geometry to one B(4), two equivalent B(1), and two equivalent B(2) atoms.
B is T-50 Boron-like structured and crystallizes in the tetragonal P4_2/nnm space group. There are four inequivalent B sites. In the first B site, B(1) is bonded in a 6-coordinate geometry to one B(3), one B(4), two equivalent B(1), and two equivalent B(2) atoms. The B(1)-B(3) bond length is 1.79 Å. The B(1)-B(4) bond length is 1.80 Å. There is one shorter (1.73 Å) and one longer (1.87 Å) B(1)-B(1) bond length. There is one shorter (1.79 Å) and one longer (1.80 Å) B(1)-B(2) bond length. In the second B site, B(2) is bonded in a 6-coordinate geometry to one B(3), one B(4), two equivalent B(1), and two equivalent B(2) atoms. The B(2)-B(3) bond length is 1.73 Å. The B(2)-B(4) bond length is 1.73 Å. There is one shorter (1.69 Å) and one longer (1.75 Å) B(2)-B(2) bond length. In the third B site, B(4) is bonded in a 6-coordinate geometry to one B(3), one B(4), two equivalent B(1), and two equivalent B(2) atoms. The B(4)-B(3) bond length is 1.76 Å. The B(4)-B(4) bond length is 1.69 Å. In the fourth B site, B(3) is bonded in a 5-coordinate geometry to one B(4), two equivalent B(1), and two equivalent B(2) atoms.