Molybdenum diselenide
Top-view atomic images of MoSe2 before and after (right) ion irradiation | |
| Names | |
|---|---|
| IUPAC name
bis(selanylidene)molybdenum | |
| Other names
molybdenum diselenide, molybdenumdiselenide, molybdenum selenide, diselanylidenemolybdenum, molybdenum(IV) selenide | |
| Identifiers | |
3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.031.831 |
| EC Number |
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PubChem CID |
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CompTox Dashboard (EPA) |
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| Properties | |
| MoSe 2 | |
| Molar mass | 253.86 g/mol |
| Appearance | crystalline solid |
| Density | 6.90 g/cm3 |
| Melting point | >1200 °C |
| Band gap | ~0.85 eV (indirect, bulk) ~1.5 eV (direct, monolayer) |
| Structure | |
| hP6, space group P6 3/mmc, No 194 | |
a = 0.3283 nm, c = 1.2918 nm | |
| Trigonal prismatic (MoIV) Pyramidal (Se2−) | |
| Related compounds | |
Other anions |
Molybdenum dioxide Molybdenum disulfide Molybdenum ditelluride Tantalum diselenide |
Other cations |
Tungsten diselenide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
Molybdenum diselenide (MoSe
2) is an inorganic compound of molybdenum and selenium. Its structure is similar to that of MoS
2. Compounds of this category are known as transition metal dichalcogenides, abbreviated TMDCs. These compounds, as the name suggests, are made up of a transition metals and elements of group 16 on the periodic table of the elements. Compared to MoS
2, MoSe
2 exhibits higher electrical conductivity.