Identifiers | |
---|---|
3D model (
JSmol)
|
|
ChemSpider | |
ECHA InfoCard | 100.033.992 |
EC Number |
|
PubChem
CID
|
|
CompTox Dashboard (
EPA)
|
|
| |
| |
Properties | |
UI3 | |
Molar mass | 618.74232 g/mol |
Appearance | black solid |
Density | 6.78 g/cm3 [1] |
Melting point | 766 [2] °C (1,411 °F; 1,039 K) |
Structure | |
orthorhombic | |
Ccmm, No. 63 | |
a = 432.8 pm, b = 1401.1 pm, c = 1000.5 pm
| |
Formula units (Z)
|
4 |
Hazards | |
GHS labelling: | |
Danger | |
H300, H330, H373, H411 | |
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
|
Uranium triiodide is an inorganic compound with the chemical formula UI3. It is a black solid that is soluble in water.
Uranium triiodide can be obtained from the direct reaction of its constituent elements: [3]
When the reaction is conducted in tetrahydrofuran (THF), the product is the blue complex UI3(THF)4. [4]
It crystallizes in the orthorhombic crystal system ( plutonium tribromide-type) in the space group Ccmm with the lattice parameters a = 432.8 pm, b = 1401.1 pm, and c = 1000.5 pm and four formula units per unit cell. [1]
Uranium triiodide can be used as a Lewis acid catalyst for various Diels-Alder reactions carried out under mild conditions. [5]
Identifiers | |
---|---|
3D model (
JSmol)
|
|
ChemSpider | |
ECHA InfoCard | 100.033.992 |
EC Number |
|
PubChem
CID
|
|
CompTox Dashboard (
EPA)
|
|
| |
| |
Properties | |
UI3 | |
Molar mass | 618.74232 g/mol |
Appearance | black solid |
Density | 6.78 g/cm3 [1] |
Melting point | 766 [2] °C (1,411 °F; 1,039 K) |
Structure | |
orthorhombic | |
Ccmm, No. 63 | |
a = 432.8 pm, b = 1401.1 pm, c = 1000.5 pm
| |
Formula units (Z)
|
4 |
Hazards | |
GHS labelling: | |
Danger | |
H300, H330, H373, H411 | |
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
|
Uranium triiodide is an inorganic compound with the chemical formula UI3. It is a black solid that is soluble in water.
Uranium triiodide can be obtained from the direct reaction of its constituent elements: [3]
When the reaction is conducted in tetrahydrofuran (THF), the product is the blue complex UI3(THF)4. [4]
It crystallizes in the orthorhombic crystal system ( plutonium tribromide-type) in the space group Ccmm with the lattice parameters a = 432.8 pm, b = 1401.1 pm, and c = 1000.5 pm and four formula units per unit cell. [1]
Uranium triiodide can be used as a Lewis acid catalyst for various Diels-Alder reactions carried out under mild conditions. [5]