Americium(III) iodide
Chemical compound
From Wikipedia, the free encyclopedia
Americium(III) iodide or americium triiodide is the chemical compound, a salt composed of americium and iodine with the formula AmI3.
| Names | |
|---|---|
| IUPAC name
Americium(III) iodide | |
| Other names
Americium triiodide | |
| Identifiers | |
3D model (JSmol) |
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| Properties | |
| AmI3 | |
| Molar mass | 624 g·mol−1 |
| Related compounds | |
Other anions |
Americium(III) fluoride Americium(III) chloride Americium(III) bromide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Preparation
Americium(III) iodide can be prepared by reacting americium(III) chloride with ammonium iodide:[2]
- AmCl3 + 3 NH4I → AmI3 + 3NH4Cl
Properties
Americium(III) iodide takes the form of yellow crystals. The crystal form is orthorhombic. It melts around 960 °C. The density is 6.9 g/cm3.[1] The compound consists of Am3+ and I− ions. It crystallizes in the trigonal crystal system in the space group R3 (space group no. 148) with the lattice parameters a = 742 pm and c = 2055 pm and six formula units per unit cell. Its crystal structure is isotypic with bismuth(III) iodide.[2][3]
