Sr2GeN2 crystallizes in the tetragonal P4_2/mbc space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 5-coordinate geometry to one N(2) and four equivalent N(1) atoms. In the second Sr site, Sr(2) is bonded to one N(1) and four equivalent N(2) atoms to form a mixture of distorted corner and edge-sharing SrN5 square pyramids. Ge(1) is bonded in a bent 120 degrees geometry to one N(1) and one N(2) atom. There are two inequivalent N sites. In the first N site, N(2) is bonded to one Sr(1), four equivalent Sr(2), and one Ge(1) atom to form a mixture of corner and edge-sharing NSr5Ge octahedra. The corner-sharing octahedral tilt angles range from 9-61°. In the second N site, N(1) is bonded to one Sr(2), four equivalent Sr(1), and one Ge(1) atom to form a mixture of distorted corner and edge-sharing NSr5Ge octahedra. The corner-sharing octahedral tilt angles range from 12-61°.
Sr2GeN2 crystallizes in the tetragonal P4_2/mbc space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 5-coordinate geometry to one N(2) and four equivalent N(1) atoms. The Sr(1)-N(2) bond length is 2.69 Å. There are a spread of Sr(1)-N(1) bond distances ranging from 2.57-2.75 Å. In the second Sr site, Sr(2) is bonded to one N(1) and four equivalent N(2) atoms to form a mixture of distorted corner and edge-sharing SrN5 square pyramids. The Sr(2)-N(1) bond length is 2.61 Å. There are a spread of Sr(2)-N(2) bond distances ranging from 2.56-2.81 Å. Ge(1) is bonded in a bent 120 degrees geometry to one N(1) and one N(2) atom. The Ge(1)-N(1) bond length is 1.88 Å. The Ge(1)-N(2) bond length is 1.86 Å. There are two inequivalent N sites. In the first N site, N(2) is bonded to one Sr(1), four equivalent Sr(2), and one Ge(1) atom to form a mixture of corner and edge-sharing NSr5Ge octahedra. The corner-sharing octahedral tilt angles range from 9-61°. In the second N site, N(1) is bonded to one Sr(2), four equivalent Sr(1), and one Ge(1) atom to form a mixture of distorted corner and edge-sharing NSr5Ge octahedra. The corner-sharing octahedral tilt angles range from 12-61°.