The selenide iodides are chemical compounds that contain both selenide ions (Se2−) and iodide ions (I) and one or metal atoms. They are in the class of mixed anion compounds or chalcogenide halides.[1]

Some related compounds do not actually contain a selenide ion, instead containing an iodoselenium cation. These cations include SeI3+, Se2I42+, Se6I22+, and polymeric Se6I+.[2]

List

name formula MW system space group unit cell cell

volume

density properties ref
Ti4Se9I6 triclinic P1 a = 7.965 b = 10.339 c = 15.692; α = 79.116°, β = 75.861°, γ = 71.437°; Z = 2 black [3]
V4O(Se2)4I6·I2 1866.64 tetragonal P42/nbc a=11.8384 c=18.689 Z=4 2619.2 4.734 dark blue [4]
CuSe3I trigonal R3m a=9.601 V= 872.859 [5]
α AsSeI monoclinic P2s a=8.855 b=4.194 c=10.341 β=93.74 Z=4 5.14 melt 221 °C dark red metallic [6]
β AsSeI cubic F4132 a=11.05 Z=16 5.53 dark red metallic [6]
AsF6Se6I [2]
NbSe2I2 triclinic P1 a=6.993 b=7.008 c=7.768 α=89.339° β=66.801° γ=61.284° Z=2 299.3 5.600 black; 2D; band gap 1 eV [7]
triniobium selenide heptaiodide Nb3SeI7 hexagonal P63mc [1]
(Nb4Se15I2)I2 monoclinic P21/c a=8.8807 b=25.8368 c=11.6222 β=103.437° black; 1D; band gap 0.6 eV [8]
[Mo3Se7(TeI3)I2]I 1729.54 P23/n a=10.4969 b=13.029 c=16.567 β =102.921° Z=4 2208.3 5.202 [1][9]
Pd2SeI3 orthorhombic metallic black [10]
heptasilver(I) tetraseleniogermanate(IV) selenide iodide Ag7GeISe5 cubic F43m a=10.9864 Z=4 1326.1 6.740 black; silver ion conductor [11]
CdBiSe2I monoclinic C2/m [1]
indium selenide iodide InSeI tetragonal I41/a [1]
Antimony selenide iodide SbSeI orthorhombic Pnma band gap 1.70 eV n-type semiconductor [1]
SbF6Se6I [2]
Cs3Mo6I6Se2I6 [1]
Cs3Mo6I7SeI6 [1]
tribarium tetraselenide diiodide Ba3Se4I2 monoclinic C2/c a = 15.080 Å, b = 10.400 Å, c = 8.383 Å, β = 103.206°, Z = 4 [12]
Ta2Se8I tetragonal a = 9.59 c = 12.64 Charge-density-wave Weyl semimetal [13][14]
tritantalum selenide heptaiodide Ta3SeI7 hexagonal P63mc [1]
Ta4Se9I8 [1]
WCl6Se6I [2]
Hg3Se2I2 orthorhombic Imma a= 9.7660 b=19.381 c=9.6332 Z=8 light red [1][15]
trimercury arsenic tetraselenide iodide Hg3AsSe4I 1119.43 hexagonal P63mc a = 7.6902 c = 9.968 Z = 2 510.50 7.283 dark red [16]
Tl6SeI4 tetragonal P4/mnc 7.4 band-gap 1.6 eV; semiconductor; melt 432 °C [1][17]
Bismuth selenide iodide BiSeI 414.84 orthorhombic Pnma a = 8.697 b = 4.2205 c = 10.574 388.1 7.100 band gap 1.3 eV; silver [1][18]
Bi2CuSe3I [1]
In2Bi3Se7I [1]
InBi2Se4I [1]

References

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