Sr3TiRuO7 crystallizes in the tetragonal I4mm space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to four equivalent O(3), four equivalent O(4), and four equivalent O(5) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, faces with four equivalent Sr(1)O12 cuboctahedra, faces with four equivalent Ti(1)O6 octahedra, and faces with four equivalent Ru(1)O6 octahedra. In the second Sr site, Sr(2) is bonded in a 9-coordinate geometry to one O(1), four equivalent O(2), and four equivalent O(5) atoms. In the third Sr site, Sr(3) is bonded in a 9-coordinate geometry to one O(2), four equivalent O(1), and four equivalent O(4) atoms. Ti(1) is bonded to one O(2), one O(3), and four equivalent O(5) atoms to form TiO6 octahedra that share  a cornercorner with one Ru(1)O6 octahedra, corners with four equivalent Ti(1)O6 octahedra, and faces with four equivalent Sr(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. Ru(1) is bonded to one O(1), one O(3), and four equivalent O(4) atoms to form RuO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra, corners with four equivalent Ru(1)O6 octahedra, and faces with four equivalent Sr(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Sr(2), four equivalent Sr(3), and one Ru(1) atom to form OSr5Ru octahedra that share  a cornercorner with one O(3)Sr4TiRu octahedra, corners with four equivalent O(5)Sr4Ti2 octahedra, corners with four equivalent O(1)Sr5Ru octahedra, corners with eight equivalent O(4)Sr4Ru2 octahedra, edges with four equivalent O(1)Sr5Ru octahedra, edges with four equivalent O(2)Sr5Ti octahedra, and faces with four equivalent O(4)Sr4Ru2 octahedra. The corner-sharing octahedral tilt angles range from 0-55°. In the second O site, O(2) is bonded to one Sr(3), four equivalent Sr(2), and one Ti(1) atom to form distorted OSr5Ti octahedra that share  a cornercorner with one O(3)Sr4TiRu octahedra, corners with four equivalent O(4)Sr4Ru2 octahedra, corners with four equivalent O(2)Sr5Ti octahedra, corners with eight equivalent O(5)Sr4Ti2 octahedra, edges with four equivalent O(1)Sr5Ru octahedra, edges with four equivalent O(2)Sr5Ti octahedra, and faces with four equivalent O(5)Sr4Ti2 octahedra. The corner-sharing octahedral tilt angles range from 0-55°. In the third O site, O(3) is bonded to four equivalent Sr(1), one Ti(1), and one Ru(1) atom to form distorted OSr4TiRu octahedra that share  a cornercorner with one O(1)Sr5Ru octahedra,  a cornercorner with one O(2)Sr5Ti octahedra, corners with four equivalent O(3)Sr4TiRu octahedra, corners with eight equivalent O(4)Sr4Ru2 octahedra, corners with eight equivalent O(5)Sr4Ti2 octahedra, edges with four equivalent O(3)Sr4TiRu octahedra, faces with four equivalent O(4)Sr4Ru2 octahedra, and faces with four equivalent O(5)Sr4Ti2 octahedra. The corner-sharing octahedral tilt angles range from 0-60°. In the fourth O site, O(4) is bonded to two equivalent Sr(1), two equivalent Sr(3), and two equivalent Ru(1) atoms to form distorted OSr4Ru2 octahedra that share corners with two equivalent O(4)Sr4Ru2 octahedra, corners with two equivalent O(2)Sr5Ti octahedra, corners with four equivalent O(3)Sr4TiRu octahedra, corners with four equivalent O(1)Sr5Ru octahedra, corners with six equivalent O(5)Sr4Ti2 octahedra,  an edgeedge with one O(5)Sr4Ti2 octahedra, edges with two equivalent O(4)Sr4Ru2 octahedra, faces with two equivalent O(3)Sr4TiRu octahedra, faces with two equivalent O(1)Sr5Ru octahedra, and faces with four equivalent O(4)Sr4Ru2 octahedra. The corner-sharing octahedral tilt angles range from 1-60°. In the fifth O site, O(5) is bonded to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Ti(1) atoms to form distorted OSr4Ti2 octahedra that share corners with two equivalent O(5)Sr4Ti2 octahedra, corners with two equivalent O(1)Sr5Ru octahedra, corners with four equivalent O(3)Sr4TiRu octahedra, corners with four equivalent O(2)Sr5Ti octahedra, corners with six equivalent O(4)Sr4Ru2 octahedra,  an edgeedge with one O(4)Sr4Ru2 octahedra, edges with two equivalent O(5)Sr4Ti2 octahedra, faces with two equivalent O(3)Sr4TiRu octahedra, faces with two equivalent O(2)Sr5Ti octahedra, and faces with four equivalent O(5)Sr4Ti2 octahedra. The corner-sharing octahedral tilt angles range from 1-60°.
Sr3TiRuO7 crystallizes in the tetragonal I4mm space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to four equivalent O(3), four equivalent O(4), and four equivalent O(5) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, faces with four equivalent Sr(1)O12 cuboctahedra, faces with four equivalent Ti(1)O6 octahedra, and faces with four equivalent Ru(1)O6 octahedra. All Sr(1)-O(3) bond lengths are 2.79 Å. All Sr(1)-O(4) bond lengths are 2.82 Å. All Sr(1)-O(5) bond lengths are 2.78 Å. In the second Sr site, Sr(2) is bonded in a 9-coordinate geometry to one O(1), four equivalent O(2), and four equivalent O(5) atoms. The Sr(2)-O(1) bond length is 2.46 Å. All Sr(2)-O(2) bond lengths are 2.80 Å. All Sr(2)-O(5) bond lengths are 2.67 Å. In the third Sr site, Sr(3) is bonded in a 9-coordinate geometry to one O(2), four equivalent O(1), and four equivalent O(4) atoms. The Sr(3)-O(2) bond length is 2.50 Å. All Sr(3)-O(1) bond lengths are 2.80 Å. All Sr(3)-O(4) bond lengths are 2.70 Å. Ti(1) is bonded to one O(2), one O(3), and four equivalent O(5) atoms to form TiO6 octahedra that share  a cornercorner with one Ru(1)O6 octahedra, corners with four equivalent Ti(1)O6 octahedra, and faces with four equivalent Sr(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. The Ti(1)-O(2) bond length is 1.96 Å. The Ti(1)-O(3) bond length is 1.99 Å. All Ti(1)-O(5) bond lengths are 1.97 Å. Ru(1) is bonded to one O(1), one O(3), and four equivalent O(4) atoms to form RuO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra, corners with four equivalent Ru(1)O6 octahedra, and faces with four equivalent Sr(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Ru(1)-O(1) bond length is 2.05 Å. The Ru(1)-O(3) bond length is 2.04 Å. All Ru(1)-O(4) bond lengths are 1.97 Å. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Sr(2), four equivalent Sr(3), and one Ru(1) atom to form OSr5Ru octahedra that share  a cornercorner with one O(3)Sr4TiRu octahedra, corners with four equivalent O(5)Sr4Ti2 octahedra, corners with four equivalent O(1)Sr5Ru octahedra, corners with eight equivalent O(4)Sr4Ru2 octahedra, edges with four equivalent O(1)Sr5Ru octahedra, edges with four equivalent O(2)Sr5Ti octahedra, and faces with four equivalent O(4)Sr4Ru2 octahedra. The corner-sharing octahedral tilt angles range from 0-55°. In the second O site, O(2) is bonded to one Sr(3), four equivalent Sr(2), and one Ti(1) atom to form distorted OSr5Ti octahedra that share  a cornercorner with one O(3)Sr4TiRu octahedra, corners with four equivalent O(4)Sr4Ru2 octahedra, corners with four equivalent O(2)Sr5Ti octahedra, corners with eight equivalent O(5)Sr4Ti2 octahedra, edges with four equivalent O(1)Sr5Ru octahedra, edges with four equivalent O(2)Sr5Ti octahedra, and faces with four equivalent O(5)Sr4Ti2 octahedra. The corner-sharing octahedral tilt angles range from 0-55°. In the third O site, O(3) is bonded to four equivalent Sr(1), one Ti(1), and one Ru(1) atom to form distorted OSr4TiRu octahedra that share  a cornercorner with one O(1)Sr5Ru octahedra,  a cornercorner with one O(2)Sr5Ti octahedra, corners with four equivalent O(3)Sr4TiRu octahedra, corners with eight equivalent O(4)Sr4Ru2 octahedra, corners with eight equivalent O(5)Sr4Ti2 octahedra, edges with four equivalent O(3)Sr4TiRu octahedra, faces with four equivalent O(4)Sr4Ru2 octahedra, and faces with four equivalent O(5)Sr4Ti2 octahedra. The corner-sharing octahedral tilt angles range from 0-60°. In the fourth O site, O(4) is bonded to two equivalent Sr(1), two equivalent Sr(3), and two equivalent Ru(1) atoms to form distorted OSr4Ru2 octahedra that share corners with two equivalent O(4)Sr4Ru2 octahedra, corners with two equivalent O(2)Sr5Ti octahedra, corners with four equivalent O(3)Sr4TiRu octahedra, corners with four equivalent O(1)Sr5Ru octahedra, corners with six equivalent O(5)Sr4Ti2 octahedra,  an edgeedge with one O(5)Sr4Ti2 octahedra, edges with two equivalent O(4)Sr4Ru2 octahedra, faces with two equivalent O(3)Sr4TiRu octahedra, faces with two equivalent O(1)Sr5Ru octahedra, and faces with four equivalent O(4)Sr4Ru2 octahedra. The corner-sharing octahedral tilt angles range from 1-60°. In the fifth O site, O(5) is bonded to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Ti(1) atoms to form distorted OSr4Ti2 octahedra that share corners with two equivalent O(5)Sr4Ti2 octahedra, corners with two equivalent O(1)Sr5Ru octahedra, corners with four equivalent O(3)Sr4TiRu octahedra, corners with four equivalent O(2)Sr5Ti octahedra, corners with six equivalent O(4)Sr4Ru2 octahedra,  an edgeedge with one O(4)Sr4Ru2 octahedra, edges with two equivalent O(5)Sr4Ti2 octahedra, faces with two equivalent O(3)Sr4TiRu octahedra, faces with two equivalent O(2)Sr5Ti octahedra, and faces with four equivalent O(5)Sr4Ti2 octahedra. The corner-sharing octahedral tilt angles range from 1-60°.