Ca3(RhN2)2 crystallizes in the monoclinic C2/c space group. There are two inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a 6-coordinate geometry to two equivalent N(2) and four equivalent N(1) atoms. In the second Ca site, Ca(2) is bonded in a 6-coordinate geometry to two equivalent N(1) and four equivalent N(2) atoms. Rh(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form a mixture of distorted corner and edge-sharing RhN4 tetrahedra. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 7-coordinate geometry to one Ca(2), four equivalent Ca(1), and two equivalent Rh(1) atoms. In the second N site, N(2) is bonded to two equivalent Ca(1), two equivalent Ca(2), and two equivalent Rh(1) atoms to form a mixture of distorted corner and edge-sharing NCa4Rh2 pentagonal pyramids.
Ca3(RhN2)2 crystallizes in the monoclinic C2/c space group. There are two inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a 6-coordinate geometry to two equivalent N(2) and four equivalent N(1) atoms. There is one shorter (2.49 Å) and one longer (2.54 Å) Ca(1)-N(2) bond length. There are a spread of Ca(1)-N(1) bond distances ranging from 2.47-2.86 Å. In the second Ca site, Ca(2) is bonded in a 6-coordinate geometry to two equivalent N(1) and four equivalent N(2) atoms. Both Ca(2)-N(1) bond lengths are 2.68 Å. There are two shorter (2.39 Å) and two longer (2.51 Å) Ca(2)-N(2) bond lengths. Rh(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form a mixture of distorted corner and edge-sharing RhN4 tetrahedra. There is one shorter (1.97 Å) and one longer (2.26 Å) Rh(1)-N(1) bond length. There is one shorter (2.01 Å) and one longer (2.05 Å) Rh(1)-N(2) bond length. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 7-coordinate geometry to one Ca(2), four equivalent Ca(1), and two equivalent Rh(1) atoms. In the second N site, N(2) is bonded to two equivalent Ca(1), two equivalent Ca(2), and two equivalent Rh(1) atoms to form a mixture of distorted corner and edge-sharing NCa4Rh2 pentagonal pyramids.