Sr3Ti is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to four equivalent Sr(1), four equivalent Sr(2), and four equivalent Ti(1) atoms to form distorted SrSr8Ti4 cuboctahedra that share corners with twelve equivalent Sr(1)Sr8Ti4 cuboctahedra, edges with eight equivalent Sr(1)Sr8Ti4 cuboctahedra, edges with eight equivalent Sr(2)Sr8Ti4 cuboctahedra, edges with eight equivalent Ti(1)Sr12 cuboctahedra, faces with four equivalent Sr(2)Sr8Ti4 cuboctahedra, faces with four equivalent Ti(1)Sr12 cuboctahedra, and faces with ten equivalent Sr(1)Sr8Ti4 cuboctahedra. In the second Sr site, Sr(2) is bonded to eight equivalent Sr(1) and four equivalent Ti(1) atoms to form distorted SrSr8Ti4 cuboctahedra that share corners with four equivalent Sr(2)Sr8Ti4 cuboctahedra, corners with eight equivalent Ti(1)Sr12 cuboctahedra, edges with eight equivalent Sr(2)Sr8Ti4 cuboctahedra, edges with sixteen equivalent Sr(1)Sr8Ti4 cuboctahedra, faces with four equivalent Sr(2)Sr8Ti4 cuboctahedra, faces with six equivalent Ti(1)Sr12 cuboctahedra, and faces with eight equivalent Sr(1)Sr8Ti4 cuboctahedra. Ti(1) is bonded to four equivalent Sr(2) and eight equivalent Sr(1) atoms to form TiSr12 cuboctahedra that share corners with four equivalent Ti(1)Sr12 cuboctahedra, corners with eight equivalent Sr(2)Sr8Ti4 cuboctahedra, edges with eight equivalent Ti(1)Sr12 cuboctahedra, edges with sixteen equivalent Sr(1)Sr8Ti4 cuboctahedra, faces with four equivalent Ti(1)Sr12 cuboctahedra, faces with six equivalent Sr(2)Sr8Ti4 cuboctahedra, and faces with eight equivalent Sr(1)Sr8Ti4 cuboctahedra.
Sr3Ti is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to four equivalent Sr(1), four equivalent Sr(2), and four equivalent Ti(1) atoms to form distorted SrSr8Ti4 cuboctahedra that share corners with twelve equivalent Sr(1)Sr8Ti4 cuboctahedra, edges with eight equivalent Sr(1)Sr8Ti4 cuboctahedra, edges with eight equivalent Sr(2)Sr8Ti4 cuboctahedra, edges with eight equivalent Ti(1)Sr12 cuboctahedra, faces with four equivalent Sr(2)Sr8Ti4 cuboctahedra, faces with four equivalent Ti(1)Sr12 cuboctahedra, and faces with ten equivalent Sr(1)Sr8Ti4 cuboctahedra. All Sr(1)-Sr(1) bond lengths are 3.89 Å. All Sr(1)-Sr(2) bond lengths are 3.90 Å. All Sr(1)-Ti(1) bond lengths are 3.90 Å. In the second Sr site, Sr(2) is bonded to eight equivalent Sr(1) and four equivalent Ti(1) atoms to form distorted SrSr8Ti4 cuboctahedra that share corners with four equivalent Sr(2)Sr8Ti4 cuboctahedra, corners with eight equivalent Ti(1)Sr12 cuboctahedra, edges with eight equivalent Sr(2)Sr8Ti4 cuboctahedra, edges with sixteen equivalent Sr(1)Sr8Ti4 cuboctahedra, faces with four equivalent Sr(2)Sr8Ti4 cuboctahedra, faces with six equivalent Ti(1)Sr12 cuboctahedra, and faces with eight equivalent Sr(1)Sr8Ti4 cuboctahedra. All Sr(2)-Ti(1) bond lengths are 3.89 Å. Ti(1) is bonded to four equivalent Sr(2) and eight equivalent Sr(1) atoms to form TiSr12 cuboctahedra that share corners with four equivalent Ti(1)Sr12 cuboctahedra, corners with eight equivalent Sr(2)Sr8Ti4 cuboctahedra, edges with eight equivalent Ti(1)Sr12 cuboctahedra, edges with sixteen equivalent Sr(1)Sr8Ti4 cuboctahedra, faces with four equivalent Ti(1)Sr12 cuboctahedra, faces with six equivalent Sr(2)Sr8Ti4 cuboctahedra, and faces with eight equivalent Sr(1)Sr8Ti4 cuboctahedra.