C crystallizes in the orthorhombic Pmmm space group. There are three inequivalent C sites. In the first C site, C(1) is bonded to two equivalent C(2) and two equivalent C(3) atoms to form a mixture of edge and corner-sharing CC4 tetrahedra. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(2) and two equivalent C(1) atoms. In the third C site, C(3) is bonded in a distorted T-shaped geometry to one C(3) and two equivalent C(1) atoms.
C crystallizes in the orthorhombic Pmmm space group. There are three inequivalent C sites. In the first C site, C(1) is bonded to two equivalent C(2) and two equivalent C(3) atoms to form a mixture of edge and corner-sharing CC4 tetrahedra. Both C(1)-C(2) bond lengths are 1.54 Å. Both C(1)-C(3) bond lengths are 1.54 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(2) and two equivalent C(1) atoms. The C(2)-C(2) bond length is 1.34 Å. In the third C site, C(3) is bonded in a distorted T-shaped geometry to one C(3) and two equivalent C(1) atoms. The C(3)-C(3) bond length is 1.33 Å.