ThF4 crystallizes in the monoclinic C2/c space group. There are two inequivalent Th sites. In the first Th site, Th(1) is bonded in a 10-coordinate geometry to two equivalent F(2), two equivalent F(3), two equivalent F(5), two equivalent F(6), and two equivalent F(7) atoms. In the second Th site, Th(2) is bonded in a 9-coordinate geometry to one F(1), one F(4), one F(5), one F(6), one F(7), two equivalent F(2), and two equivalent F(3) atoms. There are seven inequivalent F sites. In the first F site, F(7) is bonded in a bent 150 degrees geometry to one Th(1) and one Th(2) atom. In the second F site, F(1) is bonded in a bent 150 degrees geometry to two equivalent Th(2) atoms. In the third F site, F(2) is bonded in a distorted trigonal planar geometry to one Th(1) and two equivalent Th(2) atoms. In the fourth F site, F(3) is bonded in a 3-coordinate geometry to one Th(1) and two equivalent Th(2) atoms. In the fifth F site, F(4) is bonded in a linear geometry to two equivalent Th(2) atoms. In the sixth F site, F(5) is bonded in a bent 150 degrees geometry to one Th(1) and one Th(2) atom. In the seventh F site, F(6) is bonded in a bent 120 degrees geometry to one Th(1) and one Th(2) atom.
ThF4 crystallizes in the monoclinic C2/c space group. There are two inequivalent Th sites. In the first Th site, Th(1) is bonded in a 10-coordinate geometry to two equivalent F(2), two equivalent F(3), two equivalent F(5), two equivalent F(6), and two equivalent F(7) atoms. Both Th(1)-F(2) bond lengths are 2.48 Å. Both Th(1)-F(3) bond lengths are 2.79 Å. Both Th(1)-F(5) bond lengths are 2.29 Å. Both Th(1)-F(6) bond lengths are 2.47 Å. Both Th(1)-F(7) bond lengths are 2.35 Å. In the second Th site, Th(2) is bonded in a 9-coordinate geometry to one F(1), one F(4), one F(5), one F(6), one F(7), two equivalent F(2), and two equivalent F(3) atoms. The Th(2)-F(1) bond length is 2.33 Å. The Th(2)-F(4) bond length is 2.30 Å. The Th(2)-F(5) bond length is 2.33 Å. The Th(2)-F(6) bond length is 2.31 Å. The Th(2)-F(7) bond length is 2.33 Å. There is one shorter (2.54 Å) and one longer (2.77 Å) Th(2)-F(2) bond length. There is one shorter (2.31 Å) and one longer (2.57 Å) Th(2)-F(3) bond length. There are seven inequivalent F sites. In the first F site, F(7) is bonded in a bent 150 degrees geometry to one Th(1) and one Th(2) atom. In the second F site, F(1) is bonded in a bent 150 degrees geometry to two equivalent Th(2) atoms. In the third F site, F(2) is bonded in a distorted trigonal planar geometry to one Th(1) and two equivalent Th(2) atoms. In the fourth F site, F(3) is bonded in a 3-coordinate geometry to one Th(1) and two equivalent Th(2) atoms. In the fifth F site, F(4) is bonded in a linear geometry to two equivalent Th(2) atoms. In the sixth F site, F(5) is bonded in a bent 150 degrees geometry to one Th(1) and one Th(2) atom. In the seventh F site, F(6) is bonded in a bent 120 degrees geometry to one Th(1) and one Th(2) atom.