ThCoH4 crystallizes in the orthorhombic Cmcm space group. Th(1) is bonded in a 13-coordinate geometry to three equivalent H(1), four equivalent H(3), and six equivalent H(2) atoms. Co(1) is bonded to two equivalent H(1), two equivalent H(2), and two equivalent H(3) atoms to form corner-sharing CoH6 octahedra. The corner-sharing octahedral tilt angles range from 0-8°. There are three inequivalent H sites. In the first H site, H(1) is bonded to three equivalent Th(1) and two equivalent Co(1) atoms to form a mixture of edge and corner-sharing HTh3Co2 trigonal bipyramids. In the second H site, H(2) is bonded in a distorted single-bond geometry to three equivalent Th(1) and one Co(1) atom. In the third H site, H(3) is bonded in a linear geometry to four equivalent Th(1) and two equivalent Co(1) atoms.
ThCoH4 crystallizes in the orthorhombic Cmcm space group. Th(1) is bonded in a 13-coordinate geometry to three equivalent H(1), four equivalent H(3), and six equivalent H(2) atoms. There are two shorter (2.39 Å) and one longer (2.55 Å) Th(1)-H(1) bond length. All Th(1)-H(3) bond lengths are 2.76 Å. All Th(1)-H(2) bond lengths are 2.39 Å. Co(1) is bonded to two equivalent H(1), two equivalent H(2), and two equivalent H(3) atoms to form corner-sharing CoH6 octahedra. The corner-sharing octahedral tilt angles range from 0-8°. Both Co(1)-H(1) bond lengths are 1.97 Å. Both Co(1)-H(2) bond lengths are 1.61 Å. Both Co(1)-H(3) bond lengths are 1.62 Å. There are three inequivalent H sites. In the first H site, H(1) is bonded to three equivalent Th(1) and two equivalent Co(1) atoms to form a mixture of edge and corner-sharing HTh3Co2 trigonal bipyramids. In the second H site, H(2) is bonded in a distorted single-bond geometry to three equivalent Th(1) and one Co(1) atom. In the third H site, H(3) is bonded in a linear geometry to four equivalent Th(1) and two equivalent Co(1) atoms.