Selenium (Rhombohedral, layered)
allotrope
Se
A layered rhombohedral polymorph of elemental selenium
← Allotrope of Selenium
A crystalline allotrope of Selenium (space group R -3 m :H), sourced from the Crystallography Open Database (COD 9013133).
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Crystallography
| Catalogue identity | Selenium — R -3 m :H - R -3 m :H |
| Formula | Se |
| Crystal system | trigonal |
| Space group | R -3 m :H |
| Lattice (a, b, c) Å | 3.844, 3.844, 2.635 |
| Angles (α, β, γ) ° | 90, 90, 120 |
| Density (g/cm³) | 11.665 |
| Determination | Experimental (measured) |
Structure data: Crystallography Open Database · Public domain (CC0)
