Neptunium(Iii) Iodide

Neptunium(III) iodide
Identifiers
CAS Number	37501-52-3;
3D model (JSmol)	Interactive image;
PubChem CID	145816493;
	InChI InChI=1S/3HI.Np/h3*1H;/q;;;+3/p-3 Key: CZAMOQBPJFUDFF-UHFFFAOYSA-K;
	SMILES [I-].[I-].[I-].[Np+3];
Properties
Chemical formula	I3Np
Molar mass	618 g·mol−1
Appearance	brown solid
Density	6.82 g·cm−3
Melting point	767 °C
Structure
Crystal structure	orthorhombic
Space group	Ccmm (No. 63)
Lattice constant	a = 430 pm, b = 1403 pm, c = 995 pm
Related compounds
Other anions	neptunium(III) fluoride; neptunium(III) chloride; neptunium(III) bromide
Other cations	uranium(III) iodide; plutonium(III) iodide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

Neptunium(III) iodide is the iodide of neptunium with the chemical formula NpI₃.

Preparation

Neptunium(III) iodide can be produced by the reaction of neptunium dioxide and aluminium iodide:^[3]

6 NpO
2 + 8 AlI
3 → 6 NpI
3 + 4 Al
2O
3 + 3 I
2

Properties

Neptunium(III) iodide is a hygroscopic brown solid with a melting point of 767 °C. It is orthorhombic (plutonium(III) bromide structure), space group Ccmm (No. 63), lattice parameters a = 430pm, b = 1403pm and c = 995pm.^[4]

References

↑ ^1.0 ^1.1 Holleman, Arnold Frederik; Wiberg, Egon (2001), Wiberg, Nils, ed., Inorganic Chemistry, San Diego/Berlin: Academic Press/De Gruyter, p. 1969, ISBN 0-12-352651-5
↑ Gmelins Handbuch der anorganischen Chemie, System Nr. 71, Transurane, Teil C, S. 154–155.
↑ Georg Brauer (Hrsg.), unter Mitarbeit von Marianne Baudler u. a.: Handbuch der Präparativen Anorganischen Chemie. 3., umgearbeitete Auflage. Band II, Ferdinand Enke, Stuttgart 1978, ISBN 3-432-87813-3, S. 1269.
↑ C. Keller: Die Chemie des Neptuniums. In: Fortschr. chem. Forsch., 1969/70, 13/1, S. 69.

External reading

Yoshida, Zenko; Johnson, Stephen G.; Kimura, Takaumi; Krsul, John R. (2006), Morss, Lester R.; Edelstein, Norman M.; Fuger, Jean, eds., "Neptunium" (in en), The Chemistry of the Actinide and Transactinide Elements (Dordrecht: Springer Netherlands): pp. 699–812, doi:10.1007/1-4020-3598-5_6, ISBN 978-1-4020-3555-5, http://link.springer.com/10.1007/1-4020-3598-5_6, retrieved 2023-09-15

Keller, C. (1969), "Die Chemie des Neptuniums" (in de), Anorganische Chemie, Fortschritte der Chemischen Forschung (Berlin/Heidelberg: Springer-Verlag) 13/1: pp. 1–124, doi:10.1007/bfb0051170, ISBN 978-3-540-04488-8, http://link.springer.com/10.1007/BFb0051170, retrieved 2023-09-15

HI																	He
LiI	BeI₂											BI₃	CI₄	NI₃	I₂O₄, I₂O₅, I₄O₉	IF, IF₃, IF₅, IF₇	Ne
NaI	MgI₂											AlI₃	SiI₄	PI₃, P₂I₄	S	ICl, ICl₃	Ar
KI	CaI₂	Sc	TiI₄	VI₃	CrI₃	MnI₂	FeI₂	CoI₂	NiI₂	CuI	ZnI₂	Ga₂I₆	GeI₂, GeI₄	AsI₃	Se	IBr	Kr
RbI	SrI₂	YI₃	ZrI₄	NbI₅	Mo	Tc	Ru	Rh	Pd	AgI	CdI₂	InI₃	SnI₄, SnI₂	SbI₃	TeI₄	I	Xe
CsI	BaI₂		HfI₄	TaI₅	W	Re	Os	Ir	Pt	AuI	Hg₂I₂, HgI₂	TlI	PbI₂	BiI₃	Po	AtI	Rn
Fr	RaI₂		Rf	Db	Sg	Bh	Hs	Mt	Ds	Rg	Cn	Nh	Fl	Mc	Lv	Ts	Og
		↓
		La	Ce	Pr	Nd	Pm	SmI₂	Eu	Gd	TbI₃	Dy	Ho	Er	Tm	Yb	Lu
		Ac	ThI₄	Pa	UI₃, UI₄	Np	Pu	Am	Cm	Bk	Cf	EsI₃	Fm	Md	No	Lr

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Original source: https://en.wikipedia.org/wiki/Neptunium(III) iodide. Read more

[HOWI_1969-1] 1.0 ^1.1 Holleman, Arnold Frederik; Wiberg, Egon (2001), Wiberg, Nils, ed., Inorganic Chemistry, San Diego/Berlin: Academic Press/De Gruyter, p. 1969, ISBN 0-12-352651-5

[Gmelin-2] Gmelins Handbuch der anorganischen Chemie, System Nr. 71, Transurane, Teil C, S. 154–155.

[brauer-3] Georg Brauer (Hrsg.), unter Mitarbeit von Marianne Baudler u. a.: Handbuch der Präparativen Anorganischen Chemie. 3., umgearbeitete Auflage. Band II, Ferdinand Enke, Stuttgart 1978, ISBN 3-432-87813-3, S. 1269.

[Keller-4] C. Keller: Die Chemie des Neptuniums. In: Fortschr. chem. Forsch., 1969/70, 13/1, S. 69.

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v t e Neptunium compounds
Np(III)	NpF₃ NpCl₃ NpBr₃ NpI₃
Np(IV)	NpF₄ NpCl₄ NpBr₄ NpO₂ Np(C₈H₈)₂
Np(V)	NpF₅
Np(VI)	NpF₆

Identifiers

CAS Number	37501-52-3
3D model (JSmol)	Interactive image
PubChem CID	145816493
InChI InChI=1S/3HI.Np/h3*1H;/q;;;+3/p-3 Key: CZAMOQBPJFUDFF-UHFFFAOYSA-K
SMILES [I-].[I-].[I-].[Np+3]
Properties
Chemical formula	I₃Np
Molar mass	618 g·mol⁻¹
Appearance	brown solid^[1]
Density	6.82 g·cm⁻³^[2]
Melting point	767 °C^[1]
Structure
Crystal structure	orthorhombic
Space group	Ccmm (No. 63)
Lattice constant	a = 430 pm, b = 1403 pm, c = 995 pm
Related compounds
Other anions	neptunium(III) fluoride neptunium(III) chloride neptunium(III) bromide
Other cations	uranium(III) iodide plutonium(III) iodide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references