:Americium(III) iodide
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| IUPACName = Americium(III) iodide
| OtherNames = Americium triiodide
| Section1 = {{Chembox Identifiers
| CASNo = 13813-47-3
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| InChI=1S/Am.3HI/h;3*1H/q+3;;;/p-3
| InChIKey = KZIHWWKUCWPQNZ-UHFFFAOYSA-K
| SMILES = [I-].[I-].[I-].[Am+3]
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| Section2 = {{Chembox Properties
| Am=1 | I=3
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| Section8 = {{Chembox Related
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| OtherAnions =Americium(III) fluoride
Americium(III) chloride
Americium(III) bromide
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Americium(III) iodide or americium triiodide is the chemical compound, a salt composed of americium and iodine with the formula AmI3.
Preparation
Americium(III) iodide can be prepared by reacting americium(III) chloride with ammonium iodide:{{Cite journal |last1=Asprey |first1=L. B. |last2=Keenan |first2=T. K. |last3=Kruse |first3=F. H. |date=Jul 1965 |title=Crystal Structures of the Trifluorides, Trichlorides, Tribromides, and Triiodides of Americium and Curium |url=https://pubs.acs.org/doi/abs/10.1021/ic50029a013 |journal=Inorganic Chemistry |language=en |volume=4 |issue=7 |pages=985–986 |doi=10.1021/ic50029a013 |s2cid=96551460 |issn=0020-1669}}
:{{chem2|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. The compound consists of Am3+ and I− ions. It crystallizes in the trigonal crystal system in the space group R{{overline|3}} (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.Gmelins Handbuch der anorganischen Chemie, System No. 71, Transurane, Teil C, pp. 154.
References
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{{Americium compounds}}
{{Iodides}}
{{Actinide halides}}
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