Sr7PbN6 crystallizes in the orthorhombic Ibam space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form edge-sharing SrN4 trigonal pyramids. In the second Sr site, Sr(2) is bonded in a 5-coordinate geometry to two equivalent N(2) and three equivalent N(1) atoms. In the third Sr site, Sr(3) is bonded in a 4-coordinate geometry to four equivalent N(1) atoms. Pb(1) is bonded in a 4-coordinate geometry to four equivalent N(1) atoms. There are two inequivalent N sites. In the first N site, N(1) is bonded to one Sr(1), one Sr(3), three equivalent Sr(2), and one Pb(1) atom to form a mixture of distorted edge, face, and corner-sharing NSr5Pb octahedra. The corner-sharing octahedral tilt angles range from 42-66°. In the second N site, N(2) is bonded in a 6-coordinate geometry to two equivalent Sr(1) and four equivalent Sr(2) atoms.
Sr7PbN6 crystallizes in the orthorhombic Ibam space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form edge-sharing SrN4 trigonal pyramids. Both Sr(1)-N(1) bond lengths are 2.63 Å. There is one shorter (2.61 Å) and one longer (2.62 Å) Sr(1)-N(2) bond length. In the second Sr site, Sr(2) is bonded in a 5-coordinate geometry to two equivalent N(2) and three equivalent N(1) atoms. There is one shorter (2.60 Å) and one longer (2.96 Å) Sr(2)-N(2) bond length. There are a spread of Sr(2)-N(1) bond distances ranging from 2.47-2.96 Å. In the third Sr site, Sr(3) is bonded in a 4-coordinate geometry to four equivalent N(1) atoms. All Sr(3)-N(1) bond lengths are 2.69 Å. Pb(1) is bonded in a 4-coordinate geometry to four equivalent N(1) atoms. All Pb(1)-N(1) bond lengths are 2.24 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded to one Sr(1), one Sr(3), three equivalent Sr(2), and one Pb(1) atom to form a mixture of distorted edge, face, and corner-sharing NSr5Pb octahedra. The corner-sharing octahedral tilt angles range from 42-66°. In the second N site, N(2) is bonded in a 6-coordinate geometry to two equivalent Sr(1) and four equivalent Sr(2) atoms.