Chemistry:Neptunium(III) iodide

From HandWiki
Neptunium(III) iodide
Unit cell of PuBr3.png
Identifiers
3D model (JSmol)
Properties
I3Np
Molar mass 618 g·mol−1
Appearance brown solid[1]
Density 6.82 g·cm−3[2]
Melting point 767 °C[1]
Structure
orthorhombic
Ccmm (No. 63)
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
2
O
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. 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 
  2. Gmelins Handbuch der anorganischen Chemie, System Nr. 71, Transurane, Teil C, S. 154–155.
  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.
  4. C. Keller: Die Chemie des Neptuniums. In: Fortschr. chem. Forsch., 1969/70, 13/1, S. 69.

External reading

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