RbC2N3 crystallizes in the monoclinic C2/c space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 7-coordinate geometry to one N(2), one N(3), one N(4), one N(5), one N(6), and two equivalent N(1) atoms. In the second Rb site, Rb(2) is bonded in a 7-coordinate geometry to one N(1), one N(2), one N(4), two equivalent N(3), and two equivalent N(6) atoms. There are four inequivalent C sites. In the first C site, C(1) is bonded in a linear geometry to one N(1) and one N(2) atom. In the second C site, C(2) is bonded in a linear geometry to one N(2) and one N(3) atom. In the third C site, C(3) is bonded in a linear geometry to one N(4) and one N(5) atom. In the fourth C site, C(4) is bonded in a linear geometry to one N(5) and one N(6) atom. There are six inequivalent N sites. In the first N site, N(5) is bonded in a distorted bent 120 degrees geometry to one Rb(1), one C(3), and one C(4) atom. In the second N site, N(6) is bonded in a distorted single-bond geometry to one Rb(1), two equivalent Rb(2), and one C(4) atom. In the third N site, N(4) is bonded in a distorted single-bond geometry to one Rb(1), one Rb(2), and one C(3) atom. In the fourth N site, N(1) is bonded in a distorted single-bond geometry to one Rb(2), two equivalent Rb(1), and one C(1) atom. In the fifth N site, N(2) is bonded in a distorted bent 120 degrees geometry to one Rb(1), one Rb(2), one C(1), and one C(2) atom. In the sixth N site, N(3) is bonded in a distorted single-bond geometry to one Rb(1), two equivalent Rb(2), and one C(2) atom.
RbC2N3 crystallizes in the monoclinic C2/c space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 7-coordinate geometry to one N(2), one N(3), one N(4), one N(5), one N(6), and two equivalent N(1) atoms. The Rb(1)-N(2) bond length is 3.11 Å. The Rb(1)-N(3) bond length is 3.14 Å. The Rb(1)-N(4) bond length is 3.09 Å. The Rb(1)-N(5) bond length is 3.12 Å. The Rb(1)-N(6) bond length is 3.01 Å. There is one shorter (3.03 Å) and one longer (3.09 Å) Rb(1)-N(1) bond length. In the second Rb site, Rb(2) is bonded in a 7-coordinate geometry to one N(1), one N(2), one N(4), two equivalent N(3), and two equivalent N(6) atoms. The Rb(2)-N(1) bond length is 3.21 Å. The Rb(2)-N(2) bond length is 3.36 Å. The Rb(2)-N(4) bond length is 3.06 Å. There is one shorter (3.10 Å) and one longer (3.26 Å) Rb(2)-N(3) bond length. There is one shorter (3.04 Å) and one longer (3.33 Å) Rb(2)-N(6) bond length. There are four inequivalent C sites. In the first C site, C(1) is bonded in a linear geometry to one N(1) and one N(2) atom. The C(1)-N(1) bond length is 1.18 Å. The C(1)-N(2) bond length is 1.30 Å. In the second C site, C(2) is bonded in a linear geometry to one N(2) and one N(3) atom. The C(2)-N(2) bond length is 1.31 Å. The C(2)-N(3) bond length is 1.18 Å. In the third C site, C(3) is bonded in a linear geometry to one N(4) and one N(5) atom. The C(3)-N(4) bond length is 1.18 Å. The C(3)-N(5) bond length is 1.30 Å. In the fourth C site, C(4) is bonded in a linear geometry to one N(5) and one N(6) atom. The C(4)-N(5) bond length is 1.30 Å. The C(4)-N(6) bond length is 1.18 Å. There are six inequivalent N sites. In the first N site, N(5) is bonded in a distorted bent 120 degrees geometry to one Rb(1), one C(3), and one C(4) atom. In the second N site, N(6) is bonded in a distorted single-bond geometry to one Rb(1), two equivalent Rb(2), and one C(4) atom. In the third N site, N(4) is bonded in a distorted single-bond geometry to one Rb(1), one Rb(2), and one C(3) atom. In the fourth N site, N(1) is bonded in a distorted single-bond geometry to one Rb(2), two equivalent Rb(1), and one C(1) atom. In the fifth N site, N(2) is bonded in a distorted bent 120 degrees geometry to one Rb(1), one Rb(2), one C(1), and one C(2) atom. In the sixth N site, N(3) is bonded in a distorted single-bond geometry to one Rb(1), two equivalent Rb(2), and one C(2) atom.