Carbide iodides are mixed anion compounds containing iodide and carbide anions. Many carbide iodides are cluster compounds, containing one, two or more carbon atoms in a core, surrounded by a layer of metal atoms, and encased in a shell of iodide ions. These ions may be shared between clusters to form chains, double chains or layers.
The metal in carbide iodides is most often a rare earth element. Similar formulas tend to have similar structures. Where R is a rare earth element: R12C6I17 contains chains of R6 octahedra with a C26− core and a shell of iodide. R4I5C contains similar chains, but with a single C4− carbide atom. Double chain structures with single carbon atom cores include R6I7C2 and R3I3C. Layers of joined octahedra include R2I2C2 with an ethanide C24− core; R2I2C and R2IC with one carbide per octahedron. [1]
Related compounds include carbide chlorides, and carbide bromides. Carbon may be substituted by hydrogen, boron or nitrogen in the core of cluster compounds.
This list does not include cyanides, carbonyls, cyanamides or carbido borates, where carbon has bonds to other non-metals. However, there are carbide iodides that also contain nitride, oxide or other halides.
Do not confuse Cl for chlorine, and CI for carbon and iodine.
formula | system | space group | unit cell | volume | density | comment | reference |
---|---|---|---|---|---|---|---|
Sc2I3C | triclinic | P1 | a=10.793, b=10.803, c=13.959, α=87.8, β=73.04, γ=60.8 | 4,76 | black | [2] | |
Sc4C2I6 | triclinic | P1 | a=10.803 b=13.959 c=10.793 α=106.96° β=119.20° γ=87.80° Z=4 | linear chains | [3] | ||
Sc6C2I11 | triclinic | P1 | a=10.046 b=14.152 c=9.030 α=104.36° β=110.45° γ=89.27° Z=2 | 4.83 | black | [3] | |
Sc7CI12 | trigonal | R3 | a=14.717 c=9.847 Z=3 | 4.99 | dark purple; dissolves in N,N-dimethylacetamide | [4] [5] | |
Sc24C10I30 | trigonal | Pa3 | a=25.5182, c=25.5182 | 4.00 | black; supertetrahedron of C10 | [6] | |
Y2C2I2 | monoclinic | C12/m1 | a=7174, b=3.866, c=10.412 β=92.98, | 5.25 | bronze; superconductor Tc=9.97K | [2] [7] | |
Y2I2C | trigonal | P3m1 | a=3.922 c=10.404 | 5.32 | olive green | [2] | |
Y4I5C | monoclinc | C2/m | a=18.479 b=3.947 c=8.472 β=103.22° | 5.53 | dark red; chains | [8] | |
Y5C2I9 | monoclinic | C12/c1 | a=18.479, b=3947, c=8472, β=103.22° | 4.97 | black | [2] | |
Y6C2I7 | monoclinc | C2/m | a=21.557 b=3.909 c=12.374 β=123.55° | 5.53 | black; twin chain | [8] [9] | |
Y10C2I13 | monoclinc | C2/m | a=21.317 b=3.95 c=19.889 β=97.40° Z=2 | black | [9] | ||
Y19C6I34 | triclinic | P1 | a=9.3683,b=10.341, c=22.173, α=79.104, β=88.175, γ=69.277 Z=1 | 1970.8 | 5.12 | black | [2] |
Y10C2I13 | monoclinic | C12/m1 | a=21.317, b=3.957, c19.899, β=97.4° | 5.11 | black | [2] | |
Y19C6I34 | triclinic | P1 | a=93683, b=10.341, c=22.173, α=79.104°, β=88.175°, γ=69.277° | 5.12 | black | [2] | |
Y16B4C8I19 | triclinic | P1 | a=12.311, b=13.996, c=19.695, α=74.96, β=89.51, γ=67.03 | 4.40 | blue | [10] | |
Y21B7C14I18 | triclinic | P1 | a=10.66, b=15.546, c=18.416, α=82.49, β=85.01, γ=82.92 Z=2 | 2995 | 4.87 | [10] [11] | |
Y6C2I9N | hexagonal | P6 | a=20.275, c=13.025 | 4.91 | brown | [12] | |
Y7C2I12N | triclinic | P1 | a=9.7124, b=10.3038, c=16.7358, α=101.366, β=92.758, γ=112.799 | 4.84 | olive green | [12] | |
Y7C3I6O | orthorhombic | Pmma | a=22.494, b=3.837, c=10.791 | 5.12 | bronze | [12] | |
[Y9C4O]I8 | orthorhombic | Pmmn | a = 29.127, b = 3.8417, c = 10.80.29, Z = 2 | 5.16 | black | [13] [14] | |
Y16C7I14O2 | monoclinic | C2/m | a=51.6, b=3.84, c=10.8, β=93 | 5.15 | [12] | ||
YCI0.75l0.25C | monoclinic | C2/m | a=7.127, b=3.839, c=10.441, β=93.84 | 4.78 | [15] | ||
YI0.75CBr0.25 | monoclinic | C2/m | a=7.131, b=3.847, c=10.358, β=93.73 | 5.06 | [16] | ||
Zr6CI12 | trigonal | R3 | a=14.508, c=10.007 | 5.69 | [2] | ||
Zr6CI14 | orthorhombic | Cmce | a=15.69, b=14.218, c=12.808 | 5.43 | [2] | ||
K0.58Zr6CI14 | orthorhombic | Cmca | a=15.727, b=14.278, c=12798 | 5.54 | [12] | ||
RbZr6I14C | orthorhombic | Cmca | a=15.768, b=14.296, c=12.849 | 5.55 | [12] | ||
CsY10C4I18 | triclinic | P1 | a=11.138, b=11.201, c=11.325, α=66.92, β=87.26, γ=60.87 Z=1 | 1117.2 | 4.99 | black | [17] |
Cs2Zr7I18C | trigonal | R3c | a=10.744, c=29.409 | 5.42 | [18] | ||
CsZr6I14C | orthorhombic | Cmca | a=15.803, b=14.305, c=12.934 | 5.61 | [18] | ||
Cs2Zr7I18C | trigonal | R3 | a = 10.744, c = 29.409 Z=3 | 4.99 | black | [19] | |
LaIC | monoclinic | C12/m1 | a=7.619, b=4.1252, c=10.7513, β=93.143 | 5.47 | bronze | [20] | |
LaIC | monoclinic | C12/m1 | a=7.6132, b=4.1324, c=10.859, β=100.835 | 5.50 | bronze | [20] | |
La3I5C | triclinic | P1 | a=7.955, b=9.687, c=9.728, α=107.81, β=97.34, γ=105.56 | 5.28 | violet | [2] | |
La3C2I3 | orthorhombic | C2221 | a=12.026 b=17.739 c=17.735 | 5.77 | black | [2] | |
La4C1.5I5 | monoclinic | C2/m | a = 19.849, b = 4.1410, c = 8.956, β = 103.86° | 5.62 | metallic grey | [21] | |
La4C2I5 | orthorhombic | Immm | a = 19.907, b = 4.1482, c = 8.963, β = 104.36° | [21] | |||
La5C2I9 | orthorhombic | Pbca | a = 8.025, b = 16.887, c = 35.886 Z=8 | 4863 | 5.08 | >850° metallic green | [22] |
La5C2I9 | triclinic | P1 | a = 8.006, b = 10.088, c = 14.383, α = 79.34°, β = 80.75° and γ = 85.07° Z=2 | 1124.9 | 5.494 | <800 °C; dark red; air sensitive | [22] [23] |
La6I10(C2) | triclinic | P1 | a = 9.687, b = 9.728, c = 7.955, α = 97.34°, β = 105.56° and γ = 107.81° Z=1 | 699.33 | 5.276 | violet; air sensitive | [23] |
La7C3I10 | triclinic | P1 | a=9.761, b=11.79, c=14.055, α=79.6, β=71.49, γ=65.79 | 5.42 | greenish black | [2] | |
La10C4I15 | triclinic | P1 | a=9.747, b=10.655, c=11.736, α=93.68, β=114.44, γ=109.28 | 5.45 | dark red | [20] | |
La10I15(C2)2 | triclinic | P1 | a = 9.747, b = 10.655, c = 11.736, α = 93.68°, β = 114.44° and γ = 109.28° Z=1 | 1018.39 | 5.447 | dark red; air sensitive | [23] |
La12I17(C2)3 | monoclinic | C12/c1 | a= 19.927, b= 12.636, c = 19.399, β = 90.24(1)°, Ζ = 4 | 4884.6 | 5.30 | black | [24] |
La14(C2)3I20 | triclinic | P1 | a = 9.761, b = 11.790, c = 14.055, α = 79.60°, β = 71.49°, γ = 65.79° | greenish black | [25] | ||
La4B2I5C | monoclinic | a=23.303, b=4.299, c=18.991, β=126.22 | 5.30 | black | [26] | ||
La9B3C6I5 | orthorhombic | a=3.9481, b=33.857, c=8.218 | 6.01 | [10] | |||
La4I6CN | tetragonal | a=13.953 c=9.811 | 4.67 | olive green | [27] | ||
LaCI0.75l0.25C | monoclinic | C2/m | a=7.5764, b=4.0758, c=10.7266, β=93.384 | 5.12 | bronze | [15] | |
LaI0.75CBr0.25 | monoclinic | C2/m | a=75857, b=4.0981, c=10.6782, β=93.272 | 5.33 | bronze | [16] | |
Ce3I5C | triclinic | P1 | a=7.875, b=9.588, c=9.648, α=107.69, β=97.24, γ=105.32 | 5.43 | violet | [28] | |
Ce5C2I9 | orthorhombic | Pbca | a = 7.9284, b = 16.714, c = 35.530 | 5.27 | red | [22] | |
Ce6I10C2 | triclinic | P1 | a=9.588 b=9.648 c=7.875 α = 97.24°, β = 105.32° and γ = 107.69 Z=1 | 652.3 | 5.432 | violet | [23] |
Ce7C3I10 | triclinic | P1 | a=9.688, b=11.67, c=13.932, α=80.16, β=71.81, γ=65.88 | 5.57 | greenish black | [28] | |
Ce12C6I17 | monoclinic | C12/c1 | a=19.731, b=12.495, c=19.182, β=90.36 | 5.49 | black; chains | [28] | |
Ce14(C2)3I20 | triclinic | P1 | a = 9.688, b = 11.670, c = 13.932, α = 80.16°, β = 71.81°, γ = 65.88° | greenish back; semiconductor | [25] | ||
Ce4B2I5C | monoclinic | a=23.194, b=4.29, c=18.822, β=126.5 | 5.42 | black | [26] | ||
Ce8I6(C2)(N)2 | |||||||
Ce4I6CN | tetragonal | P42/mnm | a = 13.877, c = 9.665 Z=4 | 1861.3 | 4.810 | brown | [29] |
Ce6I9C2N | hexagonal | P6/m | a = 41.774, c = 13.719 Z=32 | 20734 | 5.179 | black; moisture sensitive | [29] |
Ce6I9C2N | hexagonal | P6/m | a = 20.958, c = 13.793 Z=8 | 5246 | 5.117 | black | [29] |
Pr{Pr6C}I12 | black | [30] | |||||
Pr7C3I10 | triclinic | P1 | a=9663, b=11.619, c=13.866, α=80.31, β=71.79, γ=65.9 | 5.64 | black | [2] | |
Pr12(C2)3I17 | monoclinic | C2/c | a=19.610, b=12.406, c=19.062, β=90.45° | 5.62 | metallic grey | [2] [31] | |
Nd2C2I2 | monoclinic | C2/m | layered | [32] | |||
Nd12(C2)3I17 | monoclinic | C2/c | a=19.574, b=112.393, c=19.003(5) Å, β=90.41° | 5.71 | black | [2] [31] | |
Rb{Pr6C2}I12 | triclinic | P1 | a = 9.601, b = 9.570, c = 10.034, α = 71.74, β = 70.69, γ = 72.38°, Z = 1 | 805.6 | 5.11 | black | [33] |
Cs2[Pr6(C2)]I12 | triclinic | P1 | a=9.481, b=9.536, c=10.052; α=71.01; β=84,68, γ=89.37°; Z=1 | 515.3 | 5.16 | black | [34] |
Cs4[Pr6(C2)]I13 | tetragonal | I41/amd | a = 18.049; c = 12.595 | 4.94 | blue-black with brassy lustre | [35] | |
Gd2IC | hexagonal | P63/mmc | a=3.801, c=14.792 | 8.14 | [36] | ||
Gd3I3C | monoclinic | P121/m1 | a=8.658, b=3.926, c=11.735, β=92.26 | 7.20 | bronze; twin chains | [36] | |
Gd4I5C | monoclinic | C2/m | a=18.587 b=3.978 c=8.561 β=103.3 | chains | [37] | ||
Gd6C2I7 | monoclinic | C2/m | a=21.767 b=3.947 c=12.459 β=123.6 | twin chains | [37] | ||
Gd7I12C | trigonal | R3 | a=15.288 c=10.291 | [37] | |||
Gd10C4I16 | triclinic | P1 | a=10.463 b=16.945 c=11.220 α=99.16 β=92.68 γ=88.06 | 6.18 | black | [38] | |
Gd12(C2)3I17 | monoclinic | C2/c | a = 19.297, b = 12.201, c = 18.635, β = 90.37° | 6.13 | black; Gd6 octahedra containing C2 | [39] | |
Gd4I6CN | tetragonal | a=13.578 c=9.313 | 5.48 | brown red; air sensitive | [27] | ||
Gd4I6CN | hexagonal | a=40.806 c=9.232 | 5.65 | brown red | [27] | ||
Gd19(C2)3I34 | triclinic | P1 | a = 9.4172, b = 10.339, c = 22.371, α = 79.00°, β = 88.32°, γ = 69.25° Z=1 | 2007.6 | 6.10 | black; air sensitive | [40] |
[Gd4(C2)](Cl, I)6 | tetragonal | P4/mbm | a = 13.475, c = 12.125, Z = 2 | black | [41] | ||
Gd6C3I4.56Cl4.44 | tetragonal | P4/mbm | a=13.475, c=12.125 | 5.18 | black | [15] | |
Tb2IC | hexagonal | P63/mmc | a=3.7707, c=14.66 | 8.40 | [2] | ||
Tb2C2I2 | monoclinic | C2/m | layered | [42] | |||
Dy2I3C | orthorhombic | Pnnm | a=13.622, b=14.335, c=8.396 | 5.82 | [43] | ||
Dy5C2I9 | monoclinic | P121/c1 | a=10.47, b=17.152, c=13.983, β=121.14 | 6.12 | black | [43] | |
Dy7C2I12 | trigonal | R3 | a=15.233, c=10.649 | 6.25 | black | [43] | |
Dy12(C2)3I17 | monoclinic | C2/c | a=19.149, b=12.069, c=18.595, β=90.54 | 6.46 | black | [43] [31] | |
{(C2)2O2Dy12}I18 | hexagonal | P6/m | a = 20.2418, c = 12.9921, Z = 8 | 4610.1 | 6.22 | black | [44] |
{(C2)2O2Dy14}I24 | triclinic | P1 | a = 9.730, b = 10.330, c = 16.770, α = 101.42°, β = 92.72°, γ = 112.75°, Z = 2 | 1509.3 | 5.94 | black | [44] |
Ho7C2I12N | triclinic | P1 | a=9.688, b=10.287, c=16.678, α=101.31, β=92.78, γ=112.8 | 6.06 | brown red | [45] | |
[Ho9C4O]I8 | orthorhombic | Pmmn | a=3.8157, b=28.867, c=10.748 | 7.19 | [45] [14] | ||
Er4I5C | monoclinic | C2m | a=18.521 b=4.015 c=8.478 β=103.07 | [37] | |||
Er6C2I7 | monoclinic | C2/m | a=21.375 b=3.869 c=12.319 β=123.50 | twin chains | [37] | ||
[Er9C4O]I8 | orthorhombic | Pmmn | a=3.8037, b=28.818, c=10.7381 | 7.29 | [46] [14] | ||
Cs[Er6C]I12 | trigonal | R3 | a=11.120 c=20.638 Z=3 | 443.71 | 6.02 | black | [47] |
[Er14(C2)2(N)2]l24 | triclinic | P1 | a = 9.663, b = 10.276, c = 16.634, α =101.374°, β = 92.85°, γ = 112.83°, Z =2 | 1477.8 | 6.14 | red brown | [48] |
CsEr10(C2)2I18 | triclinic | P1 | a=11.052 b=11.120 c=11.229 α=66.01° β=87.14° γ=60.80° Z=1 | 656.6 | 6.29 | black | [47] |
[Lu9C4O]I8 | orthorhombic | Pmmn | a=3.7575, b=28.333, c=10.6377 | 7.78 | [12] [14] |
Indium(III) bromide, (indium tribromide), InBr3, is a chemical compound of indium and bromine. It is a Lewis acid and has been used in organic synthesis.
There are three sets of Indium halides, the trihalides, the monohalides, and several intermediate halides. In the monohalides the oxidation state of indium is +1 and their proper names are indium(I) fluoride, indium(I) chloride, indium(I) bromide and indium(I) iodide.
Diarsenic tetraiodide is an inorganic compound of arsenic and iodine. It is a dark red metastable solid. The compound is a closely related to the better characterized diphosphorus tetraiodide. Identified in the late 19th century with the (accurate) empirical formula AsI2, the compound was assigned the formula (As2I4) several years later.
The nitridoborates are chemical compounds of boron and nitrogen with metals. These compounds are typically produced at high temperature by reacting hexagonal boron nitride with metal nitrides or by metathesis reactions involving nitridoborates. A wide range of these compounds have been made involving lithium, alkaline earth metals and lanthanides, and their structures determined using crystallographic techniques such as X-ray crystallography. Structurally one of their interesting features is the presence of polyatomic anions of boron and nitrogen where the geometry and the B–N bond length have been interpreted in terms of π-bonding.
Vanadium(II) iodide is the inorganic compound with the formula VI2. It is a black micaceous solid. It adopts the cadmium iodide structure, featuring octahedral V(II) centers. The hexahydrate [V(H2O)6]I2, an aquo complex, is also known. It forms red-violet crystals. The hexahydrate dehydrates under vacuum to give a red-brown tetrahydrate with the formula V(H2O)4I2.
The inorganic imides are compounds containing an ion composed of nitrogen bonded to hydrogen with formula HN2−. Organic imides have the NH group, and two single or one double covalent bond to other atoms. The imides are related to the inorganic amides (H2N−), the nitrides (N3−) and the nitridohydrides (N3−•H−).
The telluride iodides are chemical compounds that contain both telluride ions (Te2−) and iodide ions (I−). They are in the class of mixed anion compounds or chalcogenide halides.
Nitride fluorides containing nitride and fluoride ions with the formula NF4-. They can be electronically equivalent to a pair of oxide ions O24-. Nitride fluorides were discovered in 1996 by Lavalle et al. They heated diammonium technetium hexafluoride to 300 °C to yield TcNF. Another preparation is to heat a fluoride compound with a nitride compound in a solid state reaction. The fluorimido ion is F-N2- and is found in a rhenium compound.
Sulfidostannates, or thiostannates are chemical compounds containing anions composed of tin linked with sulfur. They can be considered as stannates with sulfur substituting for oxygen. Related compounds include the thiosilicates, and thiogermannates, and by varying the chalcogen: selenostannates, and tellurostannates. Oxothiostannates have oxygen in addition to sulfur. Thiostannates can be classed as chalcogenidometalates, thiometallates, chalcogenidotetrelates, thiotetrelates, and chalcogenidostannates. Tin is almost always in the +4 oxidation state in thiostannates, although a couple of mixed sulfides in the +2 state are known,
A chloride nitride is a mixed anion compound containing both chloride (Cl−) and nitride ions (N3−). Another name is metallochloronitrides. They are a subclass of halide nitrides or pnictide halides.
Phosphide iodides or iodide phosphides are compounds containing anions composed of iodide (I−) and phosphide (P3−). They can be considered as mixed anion compounds. They are in the category of pnictidehalides. Related compounds include the phosphide chlorides, arsenide iodides antimonide iodides and phosphide bromides.
Arsenide bromides or bromide arsenides are compounds containing anions composed of bromide (Br−) and arsenide (As3−). They can be considered as mixed anion compounds. They are in the category of pnictidehalides. Related compounds include the arsenide chlorides, arsenide iodides, phosphide bromides, and antimonide bromides.
Arsenide iodides or iodide arsenides are compounds containing anions composed of iodide (I−) and arsenide (As3−). They can be considered as mixed anion compounds. They are in the category of pnictidehalides. Related compounds include the arsenide chlorides, arsenide bromides, phosphide iodides, and antimonide iodides.
Arsenide chlorides or chloride arsenides are compounds containing anions composed of chloride (Cl−) and arsenide (As3−). They can be considered as mixed anion compounds. They are in the category of pnictidehalides. Related compounds include the arsenide bromides, arsenide iodides, phosphide chlorides, and antimonide chlorides.
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. 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, 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.
Carbide chlorides are mixed anion compounds containing chloride anions and anions consisting entirely of carbon. In these compounds there is no bond between chlorine and carbon. But there is a bond between a metal and carbon. Many of these compounds are cluster compounds, in which metal atoms encase a carbon core, with chlorine atoms surrounding the cluster. The chlorine may be shared between clusters to form polymers or layers. Most carbon chloride compounds contain rare earth elements. Some are known from group 4 elements. The hexatungsten carbon cluster can be oxidised and reduced, and so have different numbers of chlorine atoms included.
Carbide bromides are mixed anion compounds containing bromide and carbide anions. Many carbide bromides are cluster compounds, containing on, two or more carbon atoms in a core, surrounded by a layer of metal atoms, encased in a shell of bromide ions. These ions may be shared between clusters to form chains, double chains or layers.
Antimonide iodides or iodide antimonides are compounds containing anions composed of iodide (I−) and antimonide (Sb3−). They can be considered as mixed anion compounds. They are in the category of pnictide halides. Related compounds include the antimonide chlorides, antimonide bromides, phosphide iodides, and arsenide iodides.
Gadolinium(III) iodide is an iodide of gadolinium, with the chemical formula of GdI3. It is a yellow, highly hygroscopic solid with a bismuth(III) iodide-type crystal structure. In air, it quickly absorbs moisture and forms hydrates. The corresponding oxide iodide is also readily formed at elevated temperature.
Gadolinium diiodide is an inorganic compound, with the chemical formula of GdI2. It is an electride, with the ionic formula of Gd3+(I−)2e−, and therefore not a true gadolinium(II) compound. It is ferromagnetic at 276 K with a saturation magnetization of 7.3 B; it exhibits a large negative magnetoresistance (~70%) at 7 T near room temperature. It can be obtained by reacting gadolinium and gadolinium(III) iodide at a high temperature: