Selenide iodide

The selenide iodides are chemical compounds that contain both selenide ions (Se^2−) 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^+, Se₂I₄^2+, Se₆I₂^2+, 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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