TiO2 is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. Ti(1) is bonded in a 9-coordinate geometry to four equivalent O(1) and five equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(2) is bonded in a 5-coordinate geometry to five equivalent Ti(1) atoms. In the second O site, O(1) is bonded to four equivalent Ti(1) atoms to form a mixture of corner and edge-sharing OTi4 tetrahedra.
TiO2 is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. Ti(1) is bonded in a 9-coordinate geometry to four equivalent O(1) and five equivalent O(2) atoms. There are two shorter (2.05 Å) and two longer (2.06 Å) Ti(1)-O(1) bond lengths. There are a spread of Ti(1)-O(2) bond distances ranging from 2.04-2.52 Å. There are two inequivalent O sites. In the first O site, O(2) is bonded in a 5-coordinate geometry to five equivalent Ti(1) atoms. In the second O site, O(1) is bonded to four equivalent Ti(1) atoms to form a mixture of corner and edge-sharing OTi4 tetrahedra.