Carbide chloride

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Carbide chlorides 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 carbide 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.

The carbide chlorides are a subset of the halide carbides, with related compounds including the

carbide iodides
. Cluster compounds similar to these carbides, may instead replace carbon with boron, hydrogen, nitrogen or phosphorus.

List

formula system space group unit cell volume density comment reference
Ca3C3Cl2 orthorhombic Cmcm a=3.876, b=13.524, c=11.653 2.47 red [1]
Sc2CCl2 P3m1 a=3.39977 c=8.858 3.24 black [2]
Sc5CCl8 monoclinic C12/m1 a=17.8 b=3.5259 c=12.052 β=130.11 2.99 [2]
Sc7C2Cl10 monoclinic C12/m1 a=18.62 b=11.81 β=99.81 3.04 ruby red; moisture sensitive [3][2]
Ti6CCl14 orthorhombic Cmce a=12.4592 b=12.2458 c=10.9576 2.93 black [2]
YCCl C12/m1 a=6.82 b=3.713 c=9.327 β=94.75 3.85 [2]
Y2C0.7Cl2 P3m1 a=3.7022 c=9.195 3.91 silvery grey [2]
Zr6CCl14 orthorhombic Cmce a=14.091 b=12.595 c=11.506 3.43 brown red [4][2]
KZr6CCl15 orthorhombic Pnma a=18.489 b=13.909 c=9.690 Z=4 2492 dark red; Zr6C clusters [5]
Rb4Zr6CCl18 C2/m a=10.460 b=17.239 c=9.721 β=115.05 Z=2 [6]
Rb[(Zr6C)Cl15] orthorhombic Pnma a=18.484,b= 18.962,c=9.708 Z= 4 2505.4 3.12 dark red-brown [7]
Cs4[Sc6C]Cl13 tetragonal I41/amd a = 15.405, c = 10.179 Z=4 green black [8]
Cs[(Zr6C)Cl15] orthorhombic Pnma a = 18.513 b = 13.916 c = 9.6383 Z=4 2483.1 dark red [9]
La2CCl R3m a=3.878 c=16.91 5.74 coppery red [10]
La2C2Cl monoclinic C12/c1 a=14.77 b=4.187 c=6.802 β=101.5 5.44 gold [11][10]
La3C3Cl2 monoclinic C12/c1 a=7.771 b=12.962 c=6.91 β=104.3 5.16 gold [10]
La4C2Cl5 orthorhombic Immm a=3.92 b=7.945 c=19.297 4.67 black [10]
La4C5Cl2 monoclinic C12/m1 a=22.57 b=3.91 c=1.019 β=95.69 5.07 gold [10]
La5C2Cl9 triclinic P1 a=8.645 b=8.706 c=11.925 α=84.97° β=85.78° γ=61.31° 4.40 red [10]
La6(C2)3Cl4 monoclinic P21/c a = 7.770, b = 12.962, c = 6.910 and β = 104.30° Z=2 674.4 5.158 gold; sheets of octahedra [12]
La8C8Cl5 monoclinic P121/c1 a=7.756 b=16.951 c=6.878 β=104.2 5.24 gold [11][10]
La8(C2)5Cl4 monoclinic C2/m a = 22.570, b = 3.9300, c = 10.190 β = 95.69° Z=2 899.4 5.071 gold [12]
La11C11Cl7 monoclinic P121/c1 a=7.77 b=47.038 c=6.901 β=104.28 5.19 gold [10]
La14C14Cl9 monoclinic P1C1 a=7.775 b=2.9963 c=6.895 β=104.21 5.19 gold [11][10]
La20C20Cl13 monoclinic P121/c1 a=7.762 b=42.941 c=6.903 β=104.26 5.18 black [11][10]
La36C36Cl23 monoclinic P121/c1 a=7.764 b=77.055 c=6.897 β=104.26 5.18 grey [11][10]
K[La5(C2)]Cl10 monoclinic P21/c a=8.5632, b=15.074, 17.115 β=119.74 Z=4 1918.3 3.85 light red [13]
Ce2C2Cl monoclinic C12/c1 a=14.573, b=4.129, c=6.696, β=101.37 5.71 gold [1]
Ce2(C2)2Cl monoclinic C2/c a = 14.573, b = 4.129, c = 6.696, β = 101.37 ° [14]
Ce3CCl5 monoclinic C12/c1 a=13.899, b=8.71, c=15.765, β=98.22 4.29 orange [1]
Ce4CCl8 monoclinic P1C1 a=13.538, b=10.487, c=22.845, β=126.31 4.35 black [10][15]
Ce5C2Cl9 triclinic P1 a=8.57, b=8.627, c=11.869, α=84.8, β=85.5, γ=61.29 red [1]
Ce6Cl10C2 monoclinic C12/c1 a= 13.899,b= 8.710,c= 15.765,β= 98.22° Z=4 1888.9 [16]
Ce8C8Cl5 monoclinic P121/c1 a=7.669, b=16.784, c=6.798, β=104.05 5.46 gold [11][1]
Ce18(C2)9Cl11 triclinic P1 a = 6.771, b = 7.657, c = 18.98,α = 88.90 °, β = 80.32 °, γ = 76.09 ° [14]
Ce26(C2)13Cl16 monoclinic P21/c a = 7.664, b = 54.25, c = 6.796, β = 103.98 ° [14]
K[Ce5(C2)]Cl10 monoclinic P21/c a=8.4739, b=15.017, c=1639 β=119.76 Z=4 1871.2 3.97 red [13]
Pr3CCl5 monoclinic C12/c1 a=13.867 b=8.638 c=15.69 β=97.67 4.37 yellow [2]
Pr4C2Cl5 orthorhombic Immm a=3.848 b=7.759 c=17.01 5.00 black [2]
Pr5C2Cl9 triclinic P1 a=8.526 b=8.592 c=11.821 α=84.77 β=85.42 γ=61.26 4.61 brown red [2]
Pr6C2Cl10 monoclinic C2/c a = 13.687, b = 8.638, c = 15.690, β = 97.67° yellow to green [17]
Pr8C8Cl5 monoclinic C121/c1 a=7.617 b=16.689 c=6.769 β=103.94 5.57 gold [2]
Pr11C11Cl7 monoclinic P121/c1 a=7.612 b=6.127 c=6.761 β=103.92 5.56 gold [2]
Pr14C14Cl9 monoclinic P1c1 a=7.611 b=29.392 c=6.764 β=103.9 5.56 gold [2]
K{Pr5(C2)}Cl10 hexagonal P63/m a=8.426 c=14.894 Z=2 915.9 dark red [18]
Rb{Pr5(C2)}Cl10 hexagonal P63/m a=8.4499, c=14.976 Z=2 926 4.19 red; trigonal bipyrmamid of Pr containing a C2 unit [19]
Rb[Nd5(C2)]Cl10 hexagonal a=08.398, c=14.88 4.33 dark red [13]
Gd2C2Cl P3m a=3.6902, c=20.308 [10]
Gd2C2Cl2 monoclinic P3m1 a=3.7633, c=9.4593 5.69 black; contains C24− [4][10]
Gd3CCl3 cubic I4132 a=10.734 6.34 [10]
Gd4C2Cl3 orthorhombic Pnma a=10.596, b=3.684, c=19.627 6.58 bronze [10][20]
Gd5C2Cl9 monoclinic P121/c1 a=9.182, b=16.12, c=12.886, β=119.86 4.54 black [10]
Gd5C6Cl3 monoclinic C12/m1 2.1507,0.37193,1.5331,90,123.34 6.25 bronze [10]
Gd6C3Cl5 monoclinic C12/m1 a=16.688,b=3.6969,c=12.824, β=128.26 6.18 grey [10]
Gd10C4Cl17 triclinic P1 a=8.498, b=9.174, c=11.462, α=104.56, β=95.98, γ=111.35 4.70 black; contains C24− [4][10]
Gd10C4Cl18 triclinic P1 a = 8.498, b = 9.174, c = 11.462, α = 104.56°, β = 95.98°, γ = 111.35°, Z = 1 contains C24− [21][4]
[Gd4(C2)](Cl, I)6 tetragonal P4/mbm a = 13.475, c = 12.125, Z = 2 black [22]
Rb2[Gd10(C2)2]Cl19 orthorhombic a=1.2228, b=2.2347, c=1.3896 4.31 black [23]
Cs2[Gd10(C2)2]Cl19 orthorhombic a=1.2344, b=2.2434, c=1.3924 4.41 black [23]
Cs3[Tb10(C2)2]Cl21 monoclinic C2/c Z = 4; a = 23.187; b = 12.458; c = 15.02; β = 98.13° black [24]
Lu2CCl2 R3m a=3.6017, c=27.16 7.07 brown [10]
Lu2CCl2 P3m1 a= 3.5972, c=9.0925 7.05 [10]
Cs2Lu[Lu6C]Cl18 R3 a = 9.817, c = 27.232, Z = 3 [25]
Hf6CCl14 orthorhombic Cmce a=13.938, b=12.498, c=11.399 5.28 [10]
W2CCl8 orthorhombic Pbca a=11.96 b=12.156 c=10.9576 2.83 black [2]
W6CCl15 monoclinic C121/c1 a=9.8831 b=11.8945 c=17.867 β =107.883 5.47 black [2]
W6CCl16 orthorhombic Pnma a=16.637 b=12.958 c=9.797 5.29 black [2]
W6CCl18 P62c a=8.923 c=17.503 4.82 black [2]
W30C2(Cl,Br)68 triclinic P1 a = 12.003, b = 14.862, c = 15.792, α = 88.75°, β = 68.85°, γ = 71.19° Z=1 2472.9 black [26]
Li[W6CCl18] hexagonal P63/m a = 8.8648, c = 17.490 Z=2 1188.2 black [27][28]
(Bu4N)[W6CCl18] [29]
(Me4N)2[W6CCl18] [28]
(Bu4N)2[W6CCl18] [29]
(Bu4N)3[W6CCl18] [29]
Na[W6CCl18] hexagonal P63/m a=8.9592 c=17.5226 Z=2 1188.2 [28]
Ca[W6CCl18] hexagonal P63/m a=8.9384 c=17.6526 Z=2 1220.4 [28]
Cu[W6CCl18] triclinic P1 a=8.89 b=8.929 c=17.669 α=81.85 β=80.78 γ=60.39 Z=2 1200.7 5.025 black [30]
Cu(C2H6OS)6[W6CCl18] monoclinic C2/c a=17.333 b=16.011 c=18.082 β=94.61 Z=4 5001.7 3.035 dark brown [30]
Cu(C2H6OS)4[W6CCl18]2 triclinic P1 a=9.47 b=12.630 c=13.634 α=104.69° β=90.16° γ=92.99° Z=1 1575.2 4.095 dark violet [30]
Ag[W6CCl18] hexagonal P63/m a=8.874 c=17.58 Z=2 1199 [28]
Cs[W6CCl18]·CH3OH orthorhombic P212121 a = 9.6957, b =  14.046, c = 20.238 Z=4 4.623 black; W in trigonal prism around C [27]

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