Nickel ternary chalcogenides
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The nickel ternary chalcogenides are a class of chemical compounds that contain nickel, one other metallic element, and a chalcogenide. Nickel combined with another metal and oxygen forms a series of double nickel oxides which are referred to as "nickelates" or, more precisely, "oxonickelates". This page lists the many other well-defined double compounds of nickel with sulfur, selenium and tellurium; double nickel oxides are listed elsewhere.
| formula | name | colour | structure | production | references |
|---|---|---|---|---|---|
| NH4NiS5 | ammonium nickel sulphide | black | NH4 polysulfide+NiSO4 | [1][2] | |
| K2Ni3S4 | potassium nickel tetrasulfide | bronze yellow | Fddd a=10.023 b=26.074 c=5.704 | NiSO4 K2CO3 S | [1][3][4] |
| K2Ni11S10 | potassium nickel decasulfide | dark metallic green | NiO+KCNS | [1] J. Milbauer | |
| Na2Ni3S4 | sodium nickel tetrasulfide | dark yellow | NiSO4 Na2CO3 S | [1] R. Schneider | |
| KNi2S2 | potassium dinickel disulfide | orange yellow | Ni foil, S, K at 723K | [5][6] | |
| K2Ni3Se4 | potassium nickel tetraselenide | gold | Fddd a=10.468 b=26.496 c=5.995 | [7][8] | |
| KNi2Se2 | potassium dinickel diselenide | purple-red | I4/mmmtetragonal a=3.909, c=13.4142 | Ni foil, Se shot, K at 723K | [5][9] |
| CsNi2Se2 | caesium dinickel diselenide | tetragonal a=3.988, c=14.419 | heat elements | [10] | |
| TlNi2Se2 | Thallium dinickel diselenide | gold metallic | tetragonal | heat elements together in closed quartz tube | [11] |
| Rb2Ni3S4 | rubidium nickel tetrasulphide | metallic greenish gold | Fmmm orthorhombic a=9.901 Å, b=13.606 Å and c=5.861 Z=4 layered; ferromagnetic only after water immersion | [7][12] | |
| Rb2Ni3Se4 | rubidium nickel tetraselenide | golden metallic | Fddd orthorhombic a = 10.555 Å, b = 27.588 Å, c = 6.031 Å, Z = 8 layered; ferromagnetic only after water immersion | Rb2CO3 S Ni | [13] |
| Cs2Ni3S4 | cesium nickel tetrasulphide | greenish gold | Fmmm a=10.038 b=14.552 c=5.934 | [8][13] | |
| Cs2Ni3S4 | cesium nickel tetrasulphide | gold | Fmmm a=10.540 b=14.624 c=6.194 | [8] | |
| Cs0.9Ni3.1Se3 | Hexagonal P63/m a = 9.26301(4) Å and c = 4.34272(2) Å | quasi-one-dimensional electric conductor | [14] | ||
| BaNi4S5 | Barium nickel pentasulfide | bronze yellow | NiSO4 K2CO3 S | [1] R. Schneider; I. and L. Bellucci | |
| Pb2Ni3S2 | lead nickel disulfide | melt 790° | PbS Ni | [15] W Guertler; W Guertler H Schack | |
| (Ni,Fe)9S8 | Pentlandite | bronze yellow melt 870 | [15] T. Scheerer | ||
| Fe2Ni2S4 | ferrous nickel tetrasulfide | melt 840 | [16] K Bornemann | ||
| Fe2Ni2S3 | ferrous nickel trisulfide | stable over 575°, melt 886, | [17] K Bornemann | ||
| Fe3Ni4S5 | ferrous nickel pentasulfide | below 575 | [17] K Bornemann | ||
| Fe4Ni2S5 | [17] K Bornemann | ||||
| Fe2Ni3S4 | [17] K Bornemann | ||||
| Fe3Ni4S5 | [17] K Bornemann | ||||
| Fe2Ni2S3 | [17] K Bornemann | ||||
| FeNi2S4 | Violarite | dark violet grey | mineral oxidate | ||
| Ni3Sn2S2 | [18] | ||||
| Ni3Bi2S2 | superconducting | [18] | |||
| Ni3Bi2Se2 | superconducting | [18] | |||
| NiSnS3 | nickel thiostannate | greenish black | orthorhombic a=6.88 b=7.89 c=11.95 Z=8 V=644 | NiCl2 + SnS2 | [19] |
| NiGeS33 | nickelselenogermanate | [20] | |||
| Ta2NiS5 | Orthorhombic | [21] | |||
| Ta2NiSe5 | monoclinic β=90.53 | [21] | |||
| Ta2Ni2Te4 | [22] | ||||
| Ta2Ni3Te5 | [22] |
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