SrTiGeO5 crystallizes in the monoclinic P2_1/c space group. Sr(1) is bonded in a 7-coordinate geometry to one O(1), one O(3), one O(4), two equivalent O(2), and two equivalent O(5) atoms. Ti(1) is bonded to one O(1), one O(2), one O(3), one O(5), and two equivalent O(4) atoms to form TiO6 octahedra that share corners with two equivalent Ti(1)O6 octahedra and corners with four equivalent Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 32°. Ge(1) is bonded to one O(1), one O(2), one O(3), and one O(5) atom to form GeO4 tetrahedra that share corners with four equivalent Ti(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 35-55°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Sr(1), one Ti(1), and one Ge(1) atom. In the second O site, O(2) is bonded to two equivalent Sr(1), one Ti(1), and one Ge(1) atom to form a mixture of distorted corner and edge-sharing OSr2TiGe tetrahedra. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Sr(1), one Ti(1), and one Ge(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Sr(1) and two equivalent Ti(1) atoms. In the fifth O site, O(5) is bonded to two equivalent Sr(1), one Ti(1), and one Ge(1) atom to form a mixture of distorted corner and edge-sharing OSr2TiGe tetrahedra.
SrTiGeO5 crystallizes in the monoclinic P2_1/c space group. Sr(1) is bonded in a 7-coordinate geometry to one O(1), one O(3), one O(4), two equivalent O(2), and two equivalent O(5) atoms. The Sr(1)-O(1) bond length is 2.58 Å. The Sr(1)-O(3) bond length is 2.59 Å. The Sr(1)-O(4) bond length is 2.48 Å. There is one shorter (2.56 Å) and one longer (2.68 Å) Sr(1)-O(2) bond length. There is one shorter (2.56 Å) and one longer (2.63 Å) Sr(1)-O(5) bond length. Ti(1) is bonded to one O(1), one O(2), one O(3), one O(5), and two equivalent O(4) atoms to form TiO6 octahedra that share corners with two equivalent Ti(1)O6 octahedra and corners with four equivalent Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 32°. The Ti(1)-O(1) bond length is 2.03 Å. The Ti(1)-O(2) bond length is 2.04 Å. The Ti(1)-O(3) bond length is 2.02 Å. The Ti(1)-O(5) bond length is 2.05 Å. There is one shorter (1.79 Å) and one longer (2.03 Å) Ti(1)-O(4) bond length. Ge(1) is bonded to one O(1), one O(2), one O(3), and one O(5) atom to form GeO4 tetrahedra that share corners with four equivalent Ti(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 35-55°. The Ge(1)-O(1) bond length is 1.78 Å. The Ge(1)-O(2) bond length is 1.78 Å. The Ge(1)-O(3) bond length is 1.78 Å. The Ge(1)-O(5) bond length is 1.78 Å. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Sr(1), one Ti(1), and one Ge(1) atom. In the second O site, O(2) is bonded to two equivalent Sr(1), one Ti(1), and one Ge(1) atom to form a mixture of distorted corner and edge-sharing OSr2TiGe tetrahedra. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Sr(1), one Ti(1), and one Ge(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Sr(1) and two equivalent Ti(1) atoms. In the fifth O site, O(5) is bonded to two equivalent Sr(1), one Ti(1), and one Ge(1) atom to form a mixture of distorted corner and edge-sharing OSr2TiGe tetrahedra.