Sr3Mn3N5 crystallizes in the triclinic P-1 space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 6-coordinate geometry to one N(1), one N(3), one N(4), one N(5), and two equivalent N(2) atoms. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to one N(1), one N(3), one N(4), and three equivalent N(5) atoms. In the third Sr site, Sr(3) is bonded in a 5-coordinate geometry to one N(1), one N(2), one N(4), and two equivalent N(3) atoms. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one N(1), one N(5), and two equivalent N(3) atoms to form a mixture of corner and edge-sharing MnN4 tetrahedra. In the second Mn site, Mn(2) is bonded to one N(1), one N(2), and two equivalent N(4) atoms to form a mixture of corner and edge-sharing MnN4 tetrahedra. In the third Mn site, Mn(3) is bonded to one N(1), one N(2), one N(4), and one N(5) atom to form a mixture of corner and edge-sharing MnN4 tetrahedra. There are five inequivalent N sites. In the first N site, N(1) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(2), one Sr(3), one Mn(1), one Mn(2), and one Mn(3) atom. In the second N site, N(2) is bonded in a 5-coordinate geometry to one Sr(3), two equivalent Sr(1), one Mn(2), and one Mn(3) atom. In the third N site, N(3) is bonded to one Sr(1), one Sr(2), two equivalent Sr(3), and two equivalent Mn(1) atoms to form distorted edge-sharing NSr4Mn2 octahedra. In the fourth N site, N(4) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(2), one Sr(3), one Mn(3), and two equivalent Mn(2) atoms. In the fifth N site, N(5) is bonded in a distorted bent 150 degrees geometry to one Sr(1), three equivalent Sr(2), one Mn(1), and one Mn(3) atom.
Sr3Mn3N5 crystallizes in the triclinic P-1 space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 6-coordinate geometry to one N(1), one N(3), one N(4), one N(5), and two equivalent N(2) atoms. The Sr(1)-N(1) bond length is 2.88 Å. The Sr(1)-N(3) bond length is 2.61 Å. The Sr(1)-N(4) bond length is 2.64 Å. The Sr(1)-N(5) bond length is 2.97 Å. There is one shorter (2.56 Å) and one longer (2.69 Å) Sr(1)-N(2) bond length. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to one N(1), one N(3), one N(4), and three equivalent N(5) atoms. The Sr(2)-N(1) bond length is 2.70 Å. The Sr(2)-N(3) bond length is 2.60 Å. The Sr(2)-N(4) bond length is 2.72 Å. There are a spread of Sr(2)-N(5) bond distances ranging from 2.69-2.98 Å. In the third Sr site, Sr(3) is bonded in a 5-coordinate geometry to one N(1), one N(2), one N(4), and two equivalent N(3) atoms. The Sr(3)-N(1) bond length is 2.63 Å. The Sr(3)-N(2) bond length is 2.57 Å. The Sr(3)-N(4) bond length is 2.69 Å. There is one shorter (2.49 Å) and one longer (2.58 Å) Sr(3)-N(3) bond length. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one N(1), one N(5), and two equivalent N(3) atoms to form a mixture of corner and edge-sharing MnN4 tetrahedra. The Mn(1)-N(1) bond length is 1.87 Å. The Mn(1)-N(5) bond length is 1.81 Å. There is one shorter (1.88 Å) and one longer (1.90 Å) Mn(1)-N(3) bond length. In the second Mn site, Mn(2) is bonded to one N(1), one N(2), and two equivalent N(4) atoms to form a mixture of corner and edge-sharing MnN4 tetrahedra. The Mn(2)-N(1) bond length is 1.91 Å. The Mn(2)-N(2) bond length is 1.84 Å. There is one shorter (1.90 Å) and one longer (1.91 Å) Mn(2)-N(4) bond length. In the third Mn site, Mn(3) is bonded to one N(1), one N(2), one N(4), and one N(5) atom to form a mixture of corner and edge-sharing MnN4 tetrahedra. The Mn(3)-N(1) bond length is 1.98 Å. The Mn(3)-N(2) bond length is 1.87 Å. The Mn(3)-N(4) bond length is 1.91 Å. The Mn(3)-N(5) bond length is 1.83 Å. There are five inequivalent N sites. In the first N site, N(1) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(2), one Sr(3), one Mn(1), one Mn(2), and one Mn(3) atom. In the second N site, N(2) is bonded in a 5-coordinate geometry to one Sr(3), two equivalent Sr(1), one Mn(2), and one Mn(3) atom. In the third N site, N(3) is bonded to one Sr(1), one Sr(2), two equivalent Sr(3), and two equivalent Mn(1) atoms to form distorted edge-sharing NSr4Mn2 octahedra. In the fourth N site, N(4) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(2), one Sr(3), one Mn(3), and two equivalent Mn(2) atoms. In the fifth N site, N(5) is bonded in a distorted bent 150 degrees geometry to one Sr(1), three equivalent Sr(2), one Mn(1), and one Mn(3) atom.