Sr4Ru3O10 crystallizes in the orthorhombic Cmce space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to four equivalent O(2) and five equivalent O(3) atoms. In the second Sr site, Sr(2) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(4) atoms to form distorted SrO12 cuboctahedra that share corners with eight equivalent Sr(2)O12 cuboctahedra, faces with five equivalent Sr(2)O12 cuboctahedra, faces with four equivalent Ru(1)O6 octahedra, and faces with four equivalent Ru(2)O6 octahedra. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded to one O(3), one O(4), and four equivalent O(2) atoms to form RuO6 octahedra that share  a cornercorner with one Ru(2)O6 octahedra, corners with four equivalent Ru(1)O6 octahedra, and faces with four equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-16°. In the second Ru site, Ru(2) is bonded to two equivalent O(4) and four equivalent O(1) atoms to form RuO6 octahedra that share corners with two equivalent Ru(1)O6 octahedra, corners with four equivalent Ru(2)O6 octahedra, and faces with eight equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-21°. There are four inequivalent O sites. In the first O site, O(4) is bonded to four equivalent Sr(2), one Ru(1), and one Ru(2) atom to form distorted OSr4Ru2 octahedra that share  a cornercorner with one O(3)Sr5Ru octahedra, corners with five equivalent O(4)Sr4Ru2 octahedra, and edges with four equivalent O(4)Sr4Ru2 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the second O site, O(1) is bonded in a 4-coordinate geometry to four equivalent Sr(2) and two equivalent Ru(2) atoms. In the third O site, O(2) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Ru(1) atoms. In the fourth O site, O(3) is bonded to five equivalent Sr(1) and one Ru(1) atom to form OSr5Ru octahedra that share  a cornercorner with one O(4)Sr4Ru2 octahedra, corners with four equivalent O(3)Sr5Ru octahedra, and edges with eight equivalent O(3)Sr5Ru octahedra. The corner-sharing octahedral tilt angles range from 0-8°.
Sr4Ru3O10 crystallizes in the orthorhombic Cmce space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to four equivalent O(2) and five equivalent O(3) atoms. There are two shorter (2.51 Å) and two longer (2.90 Å) Sr(1)-O(2) bond lengths. There is one shorter (2.46 Å) and four longer (2.76 Å) Sr(1)-O(3) bond lengths. In the second Sr site, Sr(2) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(4) atoms to form distorted SrO12 cuboctahedra that share corners with eight equivalent Sr(2)O12 cuboctahedra, faces with five equivalent Sr(2)O12 cuboctahedra, faces with four equivalent Ru(1)O6 octahedra, and faces with four equivalent Ru(2)O6 octahedra. There are two shorter (2.56 Å) and two longer (3.07 Å) Sr(2)-O(1) bond lengths. There are two shorter (2.60 Å) and two longer (2.98 Å) Sr(2)-O(2) bond lengths. All Sr(2)-O(4) bond lengths are 2.76 Å. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded to one O(3), one O(4), and four equivalent O(2) atoms to form RuO6 octahedra that share  a cornercorner with one Ru(2)O6 octahedra, corners with four equivalent Ru(1)O6 octahedra, and faces with four equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-16°. The Ru(1)-O(3) bond length is 2.02 Å. The Ru(1)-O(4) bond length is 2.05 Å. All Ru(1)-O(2) bond lengths are 1.97 Å. In the second Ru site, Ru(2) is bonded to two equivalent O(4) and four equivalent O(1) atoms to form RuO6 octahedra that share corners with two equivalent Ru(1)O6 octahedra, corners with four equivalent Ru(2)O6 octahedra, and faces with eight equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-21°. Both Ru(2)-O(4) bond lengths are 1.97 Å. All Ru(2)-O(1) bond lengths are 1.98 Å. There are four inequivalent O sites. In the first O site, O(4) is bonded to four equivalent Sr(2), one Ru(1), and one Ru(2) atom to form distorted OSr4Ru2 octahedra that share  a cornercorner with one O(3)Sr5Ru octahedra, corners with five equivalent O(4)Sr4Ru2 octahedra, and edges with four equivalent O(4)Sr4Ru2 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the second O site, O(1) is bonded in a 4-coordinate geometry to four equivalent Sr(2) and two equivalent Ru(2) atoms. In the third O site, O(2) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Ru(1) atoms. In the fourth O site, O(3) is bonded to five equivalent Sr(1) and one Ru(1) atom to form OSr5Ru octahedra that share  a cornercorner with one O(4)Sr4Ru2 octahedra, corners with four equivalent O(3)Sr5Ru octahedra, and edges with eight equivalent O(3)Sr5Ru octahedra. The corner-sharing octahedral tilt angles range from 0-8°.