SrTcN3 is Esseneite-derived structured and crystallizes in the monoclinic C2/c space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 8-coordinate geometry to two equivalent N(2), two equivalent N(3), and four equivalent N(1) atoms. In the second Sr site, Sr(2) is bonded to two equivalent N(3) and four equivalent N(2) atoms to form SrN6 octahedra that share corners with six equivalent Tc(1)N4 tetrahedra and edges with two equivalent Sr(2)N6 octahedra. Tc(1) is bonded to one N(2), one N(3), and two equivalent N(1) atoms to form TcN4 tetrahedra that share corners with three equivalent Sr(2)N6 octahedra and corners with two equivalent Tc(1)N4 tetrahedra. The corner-sharing octahedral tilt angles range from 34-68°. There are three inequivalent N sites. In the first N site, N(1) is bonded in a 4-coordinate geometry to two equivalent Sr(1) and two equivalent Tc(1) atoms. In the second N site, N(2) is bonded in a distorted rectangular see-saw-like geometry to one Sr(1), two equivalent Sr(2), and one Tc(1) atom. In the third N site, N(3) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(2), and one Tc(1) atom.
SrTcN3 is Esseneite-derived structured and crystallizes in the monoclinic C2/c space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 8-coordinate geometry to two equivalent N(2), two equivalent N(3), and four equivalent N(1) atoms. Both Sr(1)-N(2) bond lengths are 2.75 Å. Both Sr(1)-N(3) bond lengths are 2.65 Å. There are two shorter (2.83 Å) and two longer (2.96 Å) Sr(1)-N(1) bond lengths. In the second Sr site, Sr(2) is bonded to two equivalent N(3) and four equivalent N(2) atoms to form SrN6 octahedra that share corners with six equivalent Tc(1)N4 tetrahedra and edges with two equivalent Sr(2)N6 octahedra. Both Sr(2)-N(3) bond lengths are 2.52 Å. There are two shorter (2.55 Å) and two longer (2.63 Å) Sr(2)-N(2) bond lengths. Tc(1) is bonded to one N(2), one N(3), and two equivalent N(1) atoms to form TcN4 tetrahedra that share corners with three equivalent Sr(2)N6 octahedra and corners with two equivalent Tc(1)N4 tetrahedra. The corner-sharing octahedral tilt angles range from 34-68°. The Tc(1)-N(2) bond length is 1.74 Å. The Tc(1)-N(3) bond length is 1.70 Å. There is one shorter (1.89 Å) and one longer (1.90 Å) Tc(1)-N(1) bond length. There are three inequivalent N sites. In the first N site, N(1) is bonded in a 4-coordinate geometry to two equivalent Sr(1) and two equivalent Tc(1) atoms. In the second N site, N(2) is bonded in a distorted rectangular see-saw-like geometry to one Sr(1), two equivalent Sr(2), and one Tc(1) atom. In the third N site, N(3) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(2), and one Tc(1) atom.