Pr3Ta(O2Cl)3 crystallizes in the hexagonal P6_3/m space group. Pr(1) is bonded in a 10-coordinate geometry to six equivalent O(1) and four equivalent Cl(1) atoms. Ta(1) is bonded in a distorted pentagonal pyramidal geometry to six equivalent O(1) atoms. O(1) is bonded to three equivalent Pr(1) and one Ta(1) atom to form a mixture of distorted corner and edge-sharing OPr3Ta tetrahedra. Cl(1) is bonded in a see-saw-like geometry to four equivalent Pr(1) atoms.
Pr3Ta(O2Cl)3 crystallizes in the hexagonal P6_3/m space group. Pr(1) is bonded in a 10-coordinate geometry to six equivalent O(1) and four equivalent Cl(1) atoms. There are a spread of Pr(1)-O(1) bond distances ranging from 2.43-2.68 Å. There are a spread of Pr(1)-Cl(1) bond distances ranging from 3.02-3.09 Å. Ta(1) is bonded in a distorted pentagonal pyramidal geometry to six equivalent O(1) atoms. All Ta(1)-O(1) bond lengths are 2.00 Å. O(1) is bonded to three equivalent Pr(1) and one Ta(1) atom to form a mixture of distorted corner and edge-sharing OPr3Ta tetrahedra. Cl(1) is bonded in a see-saw-like geometry to four equivalent Pr(1) atoms.