# Nitride chloride

A chloride nitride is a mixed anion compound containing both chloride (Cl$^−$) and nitride ions (N$^{3−}$). Another name is metallochloronitrides. They are a subclass of halide nitrides or pnictide halides.
The group 4 element chloride nitrides can be intercalated by alkali metals that supply extra electrons, and other molecules such as from solvents like tetrahydrofuran, yielding layered substances that are superconductors. A superconductor transition temperature T$_c$ of 25.5K has been achieved.

## Production

Nitride chlorides may be produced by heating metal nitrides with metal chlorides. The ammonolysis process heats a metal chloride with ammonia. A related method heats a metal or metal hydride with ammonium chloride. The nitrogen source could also be an azide or an amide.

## List

| name | formula | formula weight | crystal system | space group | unit cell Å | volume | density | comments |
| | Li$_4$NCl | | hexagonal | R3 | a=366.225 c=1977.18 Z=3 | | | |
| | Li$_{1.8}$N$_{0.4}$Cl$_{0.6}$ | | | | | | | Li ion conductor |
| Cyanogen chloride | ClCN | | | | | | | molecular |
| Magnesium nitride chloride | Mg$_2$NCl | | hexagonal | R3m | a = 3.2994 c = 17.857 | | | |
| phosphonitrilic chloride cyclic trimer | P$_3$N$_3$Cl$_6$ | | | | | | | molecular |
| trithiazyl trichloride | S$_3$N$_3$Cl$_3$ | | | | | | | cas 5964-00-1 |
| | Ca$_2$NCl | | hexagonal | R3m | a 3.6665 c 19.7187 | | | |
| | Sc$_2$Cl$_2$N | | | P3m1 | a = 3:517 c = 8.813 | | | layered |
| | Sc$_4$Cl$_6$N | | orthorhombic | Pbam | a = 11.625, b = 12.118, c = 3.5447 | | | |
| | Sc$_5$Cl$_8$N | | | C2/m | a = 17.85, b = 3.5505, c = 12.090, β = 130.13 | | | |
| | Sc$_7$Cl$_{12}$N | | | R3 | a = 12.990, c = 8.835 | | | Sc$_6$N clusters |
| Titanium nitride chloride | TiNCl | | orthorhombic | Pmmn | a=3.275 b=3.967 c=8.402 a = 3.937, b = 3.258, c = 7.803 | 109.2 | | black |
| | Li0.6TiNCl | | | | | | | |
| | Cl$_3$VNCl | | triclinic | P1 | a = 7.64, b = 7.14, c = 5.91, α = 94.9, β = 112.4, γ = 107.8 | | | V=NCl complex |
| | Zn$_2$NCl | 180.20 | orthorhombic | Pna2$_1$ | a=6.137 b=7.394 c=5.940 Z=4 | 269.5 | 4.441 | band gap 3.21 eV |
| | Zn$_2$NCl | | orthorhombic | Pnma | Z=16 | | | predicted |
| | Zn$_2$NCl | | hexagonal | R3m | | | | predicted |
| | Sr$_2$BN$_2$Cl | | | | | | | |
| | α-Y$_2$Cl$_3$N | | orthorhombic | Pbcn | a = 12.761, b = 6.676, c = 6.1000 | | | |
| | β-Y$_2$Cl$_3$N | | | C2/m | a = 15.248, b = 3.8520, c = 10.157, β = 118.41 | | | |
| | α-ZrNCl | | orthorhombic | Pmmn | a = 3.937, b = 3.258, c = 7.803 | | | pale yellow-green |
| β-zirconium nitride chloride | β-ZrNCl | | hexagonal | R3m | a = 3.6031, c = 27.672 | | | yellow-green;semiconductor; layers of Cl–Zr–N–N–Zr–Cl |
| | Zr$_6$Cl$_{15}$N | | cubic | Ia3d | a = 21.171 | | | |
| Lithium-intercalated β-zirconium nitride chloride | Li$_x$ZrNCl | | | | | | | black; superconductor T$_c$=12.5 K |
| | Na$_x$ZrNCl | | | | | | | superconductor T$_c$ 15 K |
| | K$_x$ZrNCl | | | | | | | superconductor T$_c$ 15 K |
| molybdenum nitride chloride | MoNCl$_3$ | | triclinic | P1 | a = 9.14, b = 7.67, c = 8.15, α = 108.8, β = 99.3, γ= 108.6 | | | |
| | Mo$_2$NCl$_7$ | | triclinic | P1 | a = 9.057, b = 9.754, c = 12.834, α = 103.13, β = 109.83, γ = 98.58 | | | |
| | Mo$_2$NCl$_8$ | | monoclinic | P2/c | a = 9.961, b = 6.294, c = 17.808, β = 101.82 | | | |
| Phenyldiazonium tetrachloronitridomolybdate | C$_6$H$_5$N$_2$[MoNCl$_4$] | | monoclinic | P2$_1$/c | a = 12.83, b = 11.70, c = 19.22 β = 94.11 Z=2 | | | dark red |
| Technetium chloride nitride | TcCl$_3$N | | | | | | | black; cas 154525-32-3 |
| | (Ph$_4$As)[TcNCl$_4$] | | | | | | | |
| | [Se$_3$N$_2$Cl]$^+$SbCl$_6$$^−$ | | triclinic | P1 | a=6.982 b=6.997 c=15.105 α = 89.45°, β = 86.18°, γ = 68.22° Z=2 | | | red |
| | Ba$_2$NCl | | hexagonal | R3m | | | | |
| | Ba$_3$Si$_3$N$_5$OCl | | | P62c | a=9.560 c=5.552 | | | |
| | Ba$_{25}$Nb$_5$N$_{19}$Cl$_{18}$ | | | | | | | |
| | LiBa$_4$[Mo$_2$N$_7$]BaCl$_2$ | | | | | | | |
| | La$_2$NCl$_3$ | | orthorhombic | Ibam | a = 13.758, b = 6.922, c = 6.185 | | | |
| | La$_2$Cl(CN$_2$)N | | orthorhombic | Cmmm | a = 13.340, b = 9.5267, c = 3.9402, Z=4 | | | |
| | La$_6$N$_3$S$_4$Cl | | orthorhombic | Pnma | a = 11.597; b = 4.1095; c = 27.568 Z=4 | | | |
| | CeNCl | | tetragonal | P4/nmm | a=4.079 c=6.837 Z= | | | black |
| Cerium(III) nitride chloride | Ce$_2$NCl$_3$ | | orthorhombic | Ibam | a = 13.6021 b=6.8903 c= 6.1396 Z=4 | 575.42 | 4.624 | Light yellow |
| | Ce$_2$Cl(CN$_2$)N | | orthorhombic | Cmmm | a = 13.3914, b = 9.6345, c = 3.9568, Z=4 | | | |
| | Ce$_6$Cl$_{12}$N$_2$ | 1294.1 | monoclinic | P2$_1$/c | a=11.233 b=16.527 c=10.798 β =90.15 Z=4 | 1988 | 4.324 | yellow |
| | Na$_2$[{(ON)Ce$_4$}Cl$_9$] | | monoclinic | P2$_1$/m | a = 8.1321, b = 11.4613, c = 9.4286 and β = 107.504° Z=2 | | | |
| | Pr$_2$NCl$_3$ | | orthorhombic | Ibam | a = 13.531, b = 6.8512, c = 6.1072 | | | |
| | Pr$_5$N$_3$S$_2$Cl$_2$ | | monoclinic | C2/m | a = 15.402; b = 4.0092; c = 16.563; β = 101.24°, Z = 4 | | | |
| | Pr$_6$N$_3$S$_4$Cl | | orthorhombic | Pnma | a=11.3987 b=4.0235 c=26.999 Z=4 | 1238.3 | | reddish-brown |
| | Nd$_2$NCl$_3$ | | orthorhombic | Pbcn | a = 13.382, b = 6.8462, c = 6.1815 | | | |
| | Nd$_3$NCl$_6$ | | orthorhombic | Pbca | a = 10.4971, b = 11.0683, c = 16.211; Z = 8 | | | |
| | Nd$_4$NS$_3$Cl$_3$ | | hexagonal | P6$_3$mc | a = 9.2278, c = 6.8306; Z = 2 | | | |
| | Nd$_6$N$_3$S$_4$Cl | | orthorhombic | Pnma | a = 11.371; b = 3.9934; c = 26.876 | | | |
| | Na$_2$Nd$_4$ONCl$_9$ | | monoclinic | P2$_1$/m | a = 8.0354, b = 11.3426, c = 9.2831 and β = 107.109° | | | |
| Trigadolinium hexachloride nitride | Gd$_3$Cl$_6$N | 698.485 | triclinic | P1 | a = 7.107, b = 8.156, c = 9.707, α = 75.37°, β = 109.10°, γ = 114.64° Z=2 | 478.8 | 4.84 | colourless; water sensitive; biaxial (−) |
| | Gd$_2$NCl$_3$ | | orthorhombic | Pbcn | a=13.017 b=6.7310 c=6.1403 | | | |
| | Gd$_2$N$_2$Cl | | tetragonal | P4mm | a = 4.25 c = 5.92 | | | |
| | α-HfNCl | | orthorhombic | Pmmn | a = 4.130, b = 3.497, c = 8.070 | | | |
| | β-HfNCl | | hexagonal | R3m | a = 3.5744, c = 27.7075 | | | colourless |
| | Na$_x$HfNCl | | | | | | | superconductor T$_c$ 25 K |
| | Ba$_3$Ta$_3$N$_6$Cl | | | P62c | a =10.1455 c =5.9770 | | | |
| | Ba$_3$Cl$_2$TaN$_3$ | | hexagonal | P6$_3$cm | a = 15.0739, c = 6.3298; Z = 6 | | | light yellow |
| | Ba$_{15}$Ta$_{15}$N$_{33}$Cl$_4$ | | | P62c | a =10.1545 c =29.917 | | | |
| | W$_2$NCl$_8$ | | triclinic | P1 | a = 6.2423, b = 6.309, c = 6.931, α = 89.76, β = 81.51, γ = 82.68 | | | |
| | W$_2$NCl$_9$ | | | P2$_1$/c | a = 8.421, b = 16.786, c = 11.930, β = 134.74° | | | |
| | [WNCl$_3$ • POCl$_3$]$_4$ • 2 POCl$_3$ | | triclinic | P1 | a = 12.257 b = 11.851 c = 19.27.0 α = 102.6° β= 108.4° γ = 94.8° Z=2 | | | |
| | Ba$_4$[WN$_4$]Cl$_2$ | | | | | | | |
| | ReNCl$_4$ | | tetragonal | I4 | a=8.278 b=8.281 c=4.057 Z=2 | | | brown |
| | ReNCl$_4$·H$_2$O | | orthorhombic | Pnma | a = 10.754, b = 11.085, c = 547.7 Z=4 | | | red |
| | [NBu$_4$][ReNCl$_4$] | | orthorhombic | P4/n | a 11.795 b 11.795 c 8.466 | | | ReN triple bond in complex |
| | K$_2$OsNCl$_5$ | | orthorhombic | Pnma | a = 13.27, b = 9.85, c = 6.84 | | | |
| Kleinite | Hg2N(Cl,SO4)•n(H2O) | | hexagonal | C6$_3$/mmc | a = 13.56 c = 11.13 Z = 18 | 1,772.33 | 8.01 | yellow |
| Mosesite | Hg2N(Cl,SO4,MoO4,CO3)•(H2O) | | cubic | F43m | a = 9.524, Z = 8 | 863.89 | 7.71 | yellow; refractive index 2.065 |
| | ThNCl | | tetragonal | P4/nmm | a =4.09486 c =6.9013 | | | |
| Uranium nitride chloride | UNCl | | tetragonal | P4/nmm | a=3.97 c=6.81 Z=2 | | | |