Nitride iodide

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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

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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

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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]

References

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