TaPb2N3 crystallizes in the monoclinic C2/c space group. Ta(1) is bonded to one N(1), one N(2), one N(3), and one N(4) atom to form corner-sharing TaN4 tetrahedra. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a distorted T-shaped geometry to one N(2) and two equivalent N(3) atoms. In the second Pb site, Pb(2) is bonded in a distorted T-shaped geometry to one N(3) and two equivalent N(2) atoms. There are four inequivalent N sites. In the first N site, N(4) is bonded in a linear geometry to two equivalent Ta(1) atoms. In the second N site, N(1) is bonded in a bent 150 degrees geometry to two equivalent Ta(1) atoms. In the third N site, N(2) is bonded in a distorted see-saw-like geometry to one Ta(1), one Pb(1), and two equivalent Pb(2) atoms. In the fourth N site, N(3) is bonded in a distorted rectangular see-saw-like geometry to one Ta(1), one Pb(2), and two equivalent Pb(1) atoms.
TaPb2N3 crystallizes in the monoclinic C2/c space group. Ta(1) is bonded to one N(1), one N(2), one N(3), and one N(4) atom to form corner-sharing TaN4 tetrahedra. The Ta(1)-N(1) bond length is 1.96 Å. The Ta(1)-N(2) bond length is 1.97 Å. The Ta(1)-N(3) bond length is 1.98 Å. The Ta(1)-N(4) bond length is 1.96 Å. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a distorted T-shaped geometry to one N(2) and two equivalent N(3) atoms. The Pb(1)-N(2) bond length is 2.46 Å. There is one shorter (2.42 Å) and one longer (2.48 Å) Pb(1)-N(3) bond length. In the second Pb site, Pb(2) is bonded in a distorted T-shaped geometry to one N(3) and two equivalent N(2) atoms. The Pb(2)-N(3) bond length is 2.59 Å. There is one shorter (2.46 Å) and one longer (2.47 Å) Pb(2)-N(2) bond length. There are four inequivalent N sites. In the first N site, N(4) is bonded in a linear geometry to two equivalent Ta(1) atoms. In the second N site, N(1) is bonded in a bent 150 degrees geometry to two equivalent Ta(1) atoms. In the third N site, N(2) is bonded in a distorted see-saw-like geometry to one Ta(1), one Pb(1), and two equivalent Pb(2) atoms. In the fourth N site, N(3) is bonded in a distorted rectangular see-saw-like geometry to one Ta(1), one Pb(2), and two equivalent Pb(1) atoms.