TmCoC crystallizes in the tetragonal P4_2/mmc space group. Tm(1) is bonded to four equivalent C(1) atoms to form a mixture of distorted edge and corner-sharing TmC4 tetrahedra. Co(1) is bonded in a linear geometry to two equivalent C(1) atoms. C(1) is bonded to four equivalent Tm(1) and two equivalent Co(1) atoms to form a mixture of edge and corner-sharing CTm4Co2 octahedra. The corner-sharing octahedral tilt angles range from 0-62°.
TmCoC crystallizes in the tetragonal P4_2/mmc space group. Tm(1) is bonded to four equivalent C(1) atoms to form a mixture of distorted edge and corner-sharing TmC4 tetrahedra. All Tm(1)-C(1) bond lengths are 2.46 Å. Co(1) is bonded in a linear geometry to two equivalent C(1) atoms. Both Co(1)-C(1) bond lengths are 1.80 Å. C(1) is bonded to four equivalent Tm(1) and two equivalent Co(1) atoms to form a mixture of edge and corner-sharing CTm4Co2 octahedra. The corner-sharing octahedral tilt angles range from 0-62°.