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Curium(III) hydroxide

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Curium hydroxide
Curium(III) hydroxide Curium hydroxide
Names
IUPAC name Curium hydroxide
Systematic IUPAC name Curium(3+) oxidanide
Identifiers
CAS Number
3D model (JSmol)
PubChem CID
CompTox Dashboard (EPA)
InChI
  • InChI=1S/Cm.3H2O/h;3*1H2/q+3;;;/p-3Key: ZOFUDUXHUCRFKX-UHFFFAOYSA-K
SMILES
  • ...
Properties
Chemical formula CmH3O3
Molar mass 298 g·mol
Appearance colorless or pale yellow solid
Solubility in water insoluble
Structure
Crystal structure hexagonal, UCl3 structure
Space group P63/m, No. 176
Lattice constant a = 639,1 pm, c = 371,2 pm
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). ☒N verify (what is  ?) Infobox references
Chemical compound
Curium hydroxide in the bottom of a microcentrifuge cone, fall 1947

Curium hydroxide Cm(OH)3 is a radioactive compound first discovered in measurable quantities in 1947. It is composed of a single curium atom and three hydroxy groups. It was the first curium compound ever isolated.

Curium hydroxide is an anhydrous colorless or light-yellow amorphous gelatinous solid that is insoluble in water.

Due to self-irradiation, the crystal structure of Cm(OH)3 decomposes within one day (Cm has a half-life of 18.11 years); for Am(OH)3 the same process takes 4 to 6 months (Am has a half-life of 432.2 years).

See also

References

  1. ^ Macintyre, Jane E. (1992). Dictionary of Inorganic Compounds. CRC Press. p. 3046. ISBN 978-0-412-30120-9.
  2. ^ Krivovichev, Sergey; Burns, Peter; Tananaev, Ivan (2006). Structural Chemistry of Inorganic Actinide Compounds. Elsevier. p. 68. ISBN 978-0-08-046791-7.
  3. Seaborg, Glenn T. (1963). Man-Made Transuranium Elements. Prentice-Hall.
  4. "WebElements Periodic Table: Curium". webelements.com. Retrieved January 20, 2019.
  5. Koch, Günter (1972). Transurane Teil C: Die Verbindungen. Gmelins Handbuch (in German). Springer-Verlag. p. 35. ISBN 978-3-662-11547-3.
Curium compounds
Curium(III)
Curium(IV)
Curium(VI)
Hydroxides
HOH He
LiOH Be(OH)2 B(OH)3 C(OH)4 N(OH)3
[NH4]OH 		O(OH)2 FOH Ne
NaOH Mg(OH)2 Al(OH)3 Si(OH)4 P(OH)3 S(OH)2 ClOH Ar
KOH Ca(OH)2 Sc(OH)3 Ti(OH)2
Ti(OH)3
Ti(OH)4 		V(OH)2
V(OH)3 		Cr(OH)2
Cr(OH)3 		Mn(OH)2 Fe(OH)2
Fe(OH)3 		Co(OH)2 Ni(OH)2 CuOH
Cu(OH)2 		Zn(OH)2 Ga(OH)3 Ge(OH)2 As(OH)3 Se BrOH Kr
RbOH Sr(OH)2 Y(OH)3 Zr(OH)4 Nb Mo Tc(OH)4 Ru Rh(OH)3 Pd AgOH Cd(OH)2 In(OH)3 Sn(OH)2
Sn(OH)4 		Sb(OH)3 Te(OH)6 IOH Xe
CsOH Ba(OH)2 * Lu(OH)3 Hf Ta W Re Os Ir Pt Au(OH)3 Hg(OH)2 TlOH
Tl(OH)3 		Pb(OH)2
Pb(OH)4 		Bi(OH)3 Po At Rn
FrOH Ra(OH)2 ** Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og
 
* La(OH)3 Ce(OH)3
Ce(OH)4 		Pr(OH)3 Nd(OH)3 Pm(OH)3 Sm(OH)3 Eu(OH)2
Eu(OH)3 		Gd(OH)3 Tb(OH)3 Dy(OH)3 Ho(OH)3 Er(OH)3 Tm(OH)3 Yb(OH)3
** Ac(OH)3 Th(OH)4 Pa U(OH)2
U(OH)3
UO2(OH)2 		Np(OH)3
Np(OH)4
NpO2(OH)3 		Pu Am(OH)3 Cm(OH)3 Bk Cf Es Fm Md No
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