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.

^ ^a ^b Holleman, Arnold Frederik; Wiberg, Egon (2001), Wiberg, Nils (ed.), Inorganic Chemistry, translated by Eagleson, Mary; Brewer, William, 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.

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