# Telluride iodide

The telluride iodides are chemical compounds that contain both telluride ions (Te$^{2−}$) and iodide ions (I$^−$). They are in the class of mixed anion compounds or chalcogenide halides.
Tellurium does not normally bond with iodine, but can form many different units with bonds to other tellurium atoms.

## List

| name | formula | system | space group | unit cell | volume | density | properties |
| Copper telluride iodide | CuTeI | tetrahedral | I4$_1$/amd | a = 17.170, c = 4.876, and Z = 16 | | | Cu$^{+1}$ ion conductor; metallic grey |
| | (CuI)$_3$Cu$_2$TeS$_3$ | | P3$_1$21 | | | | |
| gallium telluride iodide | GaTeI | orthorhombic | | | | | band gap 2.55 |
| | Ge$_{40.0}$Te$_{5.3}$I$_8$ | cubic | Pm3n | a=10.815 Z = 1 | 1265.0 | 6.023 | band gap 0.8 eV; clathrate |
| α-Arsenic telluride iodide | AsTeI | monoclinic | P2$_1$ | a=8.965 b=4.042 c=10.341 β=90.75 Z=4 | | 5.84 | melt 281°C black |
| β-Arsenic telluride iodide | AsTeI | cubic | Fm3m | a=5.791 Z=2 | | 5.63 | black metallic |
| | As$_4$Te$_5$I$_2$ | monoclinic | | a=14.58 b=4.00 c=12.26 β=95.0 Z=2 | | 5.51 | melt 303 °C metallic |
| triniobium telluride heptaiodide | Nb$_3$TeI$_7$ | | | | | | |
| | NbTe$_4$I | | P2$_1$/c | a=7.695 b=15.393 c=13.438 β=100.84 Z=8 | 1563.2 | 6.205 | black metallic |
| diniobium hexatelluride iodide | Nb$_2$Te$_6$I | | P2$_1$/c | a=9.197 b=13.387 c=9.651 β=112.36 | 1093.8 | 6.548 | |
| | Nb$_4$Te$_{12}$I | monoclinic | C12/c1 | a=21.957 b=6.147 c=19.925 β=122.40 Z=4 | 2270.6 | 5.8 | black |
| | Nb$_4$Te$_{17}$I$_4$ | monoclinic | C2/c | a = 16.199 b = 8.128 c = 27.355 β = 110.84°, Z = 4 | | | black metallic |
| | Mo$_3$Te$_{l0}$I$_{l0}$ | | | | | | |
| | [Mo$_3$Se7(TeI$_3$)I$_2$]I | monoclinic | P2$_3$/n | a=10.4969 b=13.029 c=16.567 β =102.921° Z=4 | 2208.3 | 5.202 | |
| | [Mo$_3$Te$_7$(TeI$_3$)$_3$]$_2$(I)(TeI$_3$) | triclinic | P1 | a=11.2148 b=11.6550 c=16.6798 α=92.124 β=102.223 γ=117.427 Z= | 1868.4 | 5.374 | |
| Palladium telluride iodide | PdTeI | | | a=7.821 c=5.659 | | | brass yellow |
| | Ag$_{23}$Te$_{12}$I | orthorhombic | Pnnm | | | | honeycomb Te |
| | Ag$_{19}$Te$_6$Br$_{5.4}$I$_{1.6}$ | orthorhombic | Pnma | | | | electric conductor |
| indium telluride iodide | InTeI | monoclinic | P21/c | | | | |
| Antimony telluride iodide | SbTeI | triclinic | P1 | | | | |
| | (Sb$_2$Te$_2$)I[AlI$_4$] | monoclinic | P2$_1$/n | | | | |
| | La$_2$TeI$_2$ | rhombohedral | R3m | a = 4.5074 c = 32.528 Z = 3 | | | metallic |
| | Er$_{17.3}$Te$_{24}$I$_8$ | | Fd3m | a=12.020 | | | |
| | Ta$_3$TeI$_7$ | hexagonal | P6$_3$mc | | | | |
| | [TaTe$_4$]$_4$[PtI$_6$]I$_2$ | triclinic | P1 | a=16.831 b=17.740 c=19.018 α=93.57 β=94.08 γ=102.09 Z=1 | 977.65 | | |
| | TaTe$_4$I | triclinic | P1 | a=6.679 b=7.787 c=8.581 α=112.76 β=102.60 γ=101.25 Z=2 | 381.8 | 7.118 | black |
| | W$_2$Cl$_{12}$Te$_6$I$_2$ | | | | | | |
| Gold telluride iodide | AuITe | monoclinic | | a=7.317 b=7.626 c=7.249 β=106.33 | | 7.73 | semiconductor band gap 0.9 grey melt 360°C |
| Gold telluride diiodide | AuITe$_2$ | orthorhombic | Pmmb | a = 4.056 Å, b = 12.579 Å, c = 4.741 Å, Z = 2 | 241.9 | 7.989 | silvery white conductor melt 440°C |
| | Hg$_3$Te$_2$I$_2$ | | | | | | greyish red |
| | Hg$_3$Te$_2$BrI | monoclinic | C2 | 18.376 b=9.587 c=10.575 β=100.11° | | | |
| | Hg$_3$TeI$_4$ | cubic | F43m | a=6.244 Z=(80% partial occupancy) | 243.4 | 7.03 | decompose 273°C dark ruby red |
| Bismuth telluride iodide | BiTeI | | P3m1 / Pnma | | | | over 3.9 GPa Weyl semimetal; under semimetal |
| | ThTe$_2$I$_2$ | monoclinic | C2/m | a  = 7.642 b  = 14.336 c  = 7.727 and β = 111.27° Z = 4 | | | |
| | [Ta$_7$(Se$_2$)$_{14}$][U$_2$I$_{10}$]$_2$ | orthorhombic | Cccm | a = 21.5134 b = 22.1619 and c = 16.7834 Z=4 | | | |