Ta2O5 crystallizes in the monoclinic C2 space group. Ta(1) is bonded in a 7-coordinate geometry to two equivalent O(2), two equivalent O(3), and three equivalent O(1) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to three equivalent Ta(1) atoms. In the second O site, O(2) is bonded in a water-like geometry to two equivalent Ta(1) atoms. In the third O site, O(3) is bonded in a 4-coordinate geometry to four equivalent Ta(1) atoms.
Ta2O5 crystallizes in the monoclinic C2 space group. Ta(1) is bonded in a 7-coordinate geometry to two equivalent O(2), two equivalent O(3), and three equivalent O(1) atoms. There is one shorter (1.90 Å) and one longer (2.01 Å) Ta(1)-O(2) bond length. There is one shorter (2.16 Å) and one longer (2.40 Å) Ta(1)-O(3) bond length. There are a spread of Ta(1)-O(1) bond distances ranging from 1.94-2.40 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to three equivalent Ta(1) atoms. In the second O site, O(2) is bonded in a water-like geometry to two equivalent Ta(1) atoms. In the third O site, O(3) is bonded in a 4-coordinate geometry to four equivalent Ta(1) atoms.