An iodide nitride is a mixed anion compound containing both iodide (I−) and nitride ions (N3−). Another name is metalloiodonitrides. They are a subclass of halide nitrides or pnictide halides.[1] Some different kinds include ionic alkali or alkaline earth salts, small clusters where metal atoms surround a nitrogen atom, layered group 4 element 2-dimensional structures (which could be exfoliated to a monolayer), and transition metal nitrido complexes counter-balanced with iodide ions. There is also a family with rare earth elements and nitrogen and sulfur in a cluster.
Related mixed-anion compounds include halogen variations: nitride fluoride, nitride chloride, and nitride bromide, and pnictogen variations phosphide iodide, arsenide iodide and antimonide iodides.
Production
Nitride iodides may be produced by heating metal nitrides with metal iodides. The ammonolysis process heats a metal iodide with ammonia.[2] A related method heats a metal or metal hydride with ammonium iodide. The nitrogen source could also be an azide or an amide.[2]
List
| name | formula | formula weight | crystal system | space group | unit cell Å | volume | density | comments | ref |
|---|---|---|---|---|---|---|---|---|---|
| Li4NCl | hexagonal | R3 | a=366.225 c=1977.18 Z=3 | [3] | |||||
| calcium nitride iodide | Ca2NI | P63/mmc | a = 3.8095, c = 14.530, Z = 2 | [4] | |||||
| α-TiNI | orthorhombic | Pmmn | a=3.941 b=3.51.5 c=8.955 Z=2 | black | [5] | ||||
| NCr(I)(NiPr2)2 | [6] | ||||||||
| Cr(I)(N)(N(C(CD3)2CH3)(C6H3FMe))2 | [7] | ||||||||
| Zn2NI | orthorhombic | Pnma | a=6.3590 b=6.2529 c=7.9549 | <6 GPa | [8] | ||||
| strontium nitride iodide | Sr2NI | 316.15 | trigonal | R3m | a = 4.0049 c = 23.055 Z=3 | 320.24 | 4.918 | orange | [9] |
| α-ZrNI | orthorhombic | Pmmn | a=4.114 b=3.724 c=9.431 Z=2 | orange | [10][5] | ||||
| β-ZrNI | trigonal | R3m | a=3.718 c=31.381 Z=6 | brown | [5] | ||||
| [(pcp)Mo(IV)(N)(I)][Na(15-crown-5)] pcp=C6H3(OPiPr2)2 | [11] | ||||||||
| Ba2NI | |||||||||
| LiLa4N2I7 | orthorhombic | Pnma | a = 13.7417, b = 12.1345, c = 10.7991 Z=4 | @100K | [12] | ||||
| NaLa4N2I7 | orthorhombic | Pna21 | a=14.0018 b=10.9315 c=12.1021 Z=4 | 5.361 | colourless air sensitive | [13] | |||
| Ce15N7I24 | 4245.6 | orthorhombic | Pnma | a=12.060 b=32.216 c=16.360 Z=4 | 5.48 | red; air sensitive | [14] | ||
| NaCe4N2I7 | orthorhombic | Pna21 | a=13.9703 b=10.8932 c=12.0194 Z=4 | 5.446 | red air sensitive | [13] | |||
| NaPr4N2I7 | orthorhombic | Pna21 | a=13.9412 b=10.8578 c=11.9389 Z=4 | 5.524 | yellowish green air sensitive | [13] | |||
| NaNd4N2I7 | orthorhombic | Pna21 | a=13.9135 b=10.86 c=11.86 Z=4 | 5.638 | pinkish blue air sensitive | [13] | |||
| (NdI2)3N | [15] | ||||||||
| (NdI2)3N(DME)4 | [16] | ||||||||
| NdI(S2N2)(THF) | [17] | ||||||||
| Nd3I5(S2N2)(S2)(THF)10 | 2088.72 | monoclinic | P21 | a=12.393 b=43.389 c=12.684 β=90.013 Z=4 | 6820 | 2.034 | yellow | [15] | |
| Ln3I5(S2)(S2N2)(THF)4(Phen)3 | [18] | ||||||||
| Ln3I5(S2)(S2N2)(THF)3(Py)7 | [18] | ||||||||
| (SmI)3N2(THF) | [16] | ||||||||
| ErI(S2N2)(THF) | [17] | ||||||||
| Nd2ErClI4-(S2)(S2N2)(THF)7 | [17] | ||||||||
| Nd2ErCl2I3(S2)(S2N2)(THF)7 | [17] | ||||||||
| (DyI2)3N | [19] | ||||||||
| Dy3I5(S2)(S2N2)(THF)10 | [19] | ||||||||
| Nd2DyI5(S2)(S2N2)(THF)7 | [17] | ||||||||
| Nd2DyI5(S3)(S2N2)(THF)9 | 2034.88 | monoclinic | P21/c | a=23.1102 b=12.6551 c=23.8268 β =111.201 Z=4 | 6496.8 | 2.080 | [20] | ||
| Nd2TbI5(S2)(S2N2)(THF)9 | monoclinic | P21/c | a =23.1704 b =12.6340 c =23.8340, β =111.274° Z=4 | [21] | |||||
| Nd2TmI5(S2)(S2N2)(THF)9 | monoclinic | P21/c | a =23.075 b =12.6540 c =23.809, β =111.460° Z=4 | [21] | |||||
| Nd2YbI5(S3)(S2N2)(THF)9 | monoclinic | P21/c | a=23.0959 b=12.6632 c=23.8387 β =111.363 Z=4 | 6493.0 | 2.092 | [20] | |||
| α-HfNI | orthorhombic | Pmmn | a=4.10.67 b=3.6944 c=9.382 Z=2 | [5][10] | |||||
| β-HfNI | trigonal | R3m | a=3.689 c=31.329 Z=6 | brown | [5] | ||||
| ThNI | tetragonal | P4/nmm | a=4.107 c=9.242 | orange to golden grey | [5][22] | ||||
| UNI | tetragonal | P4/nmm | a=3.99 c=9.20 Z=2 | [5][23] |