Preparation and crystal structures of plutonium(IV) hexachloro complexes, Rb/sub 2/PuCl/sub 6/ and K/sub 2/PuCl/sub 6/
Rb/sub 2/PuCl/sub 6/ and K/sub 2/PuCl/sub 6/ were prepared by heating mixtures of anhydrous PuCl/sub 3/ and the respective alkali metal chlorides under high Cl/sub 2/ pressures. Their crystal structures were determined by powder X-ray crystallography. Rb/sub 2/PuCl/sub 6/: hexagonal, space group P6/sub 3/mc, a = 7.377 +- 0.002, c = 11.880 +- 0.007 A, Z = 2, V = 279.9 +- 0.3 A/sup 3/ (per formula), D/sub x/ = 3.69 gcm/sup 3/. K/sub 2/PuCl/sub 6/: monoclinic, space group P2m, a = 7.218 +- 0.005, b = 7.611 +- 0.006, c = 10.208 +- 0.007 A, ..beta.. = 91.59 +- 0.04/sup 0/, Z = 2, V = 280.3 +- 0.3 A/sup 3/ (per formula), D/sub x/ = 3.14 gcm/sup 3/. The variable atom parameters were obtained by means of electrostatic calculation to have the maximum Madelung constant. Raman spectra showed two lines corresponding to v/sub 1/(A/sub 1g/) and v/sub 5/(F/sub 2g) for both compounds. The difference of stability in M/sub 2/PuCl/sub 6/ (M = K, Rb, Cs) is discussed.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 7007062
- Journal Information:
- J. Solid State Chem.; (United States), Journal Name: J. Solid State Chem.; (United States) Vol. 72:2; ISSN JSSCB
- Country of Publication:
- United States
- Language:
- English
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ACTINIDE COMPOUNDS
ALKALI METAL COMPOUNDS
CHEMICAL PREPARATION
CHLORIDES
CHLORINE COMPOUNDS
COHERENT SCATTERING
CRYSTAL GROWTH
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DATA
DIFFRACTION
EXPERIMENTAL DATA
HALIDES
HALOGEN COMPOUNDS
HEXAGONAL LATTICES
INFORMATION
LASER SPECTROSCOPY
LATTICE PARAMETERS
MONOCLINIC LATTICES
NUMERICAL DATA
PLUTONIUM CHLORIDES
PLUTONIUM COMPOUNDS
POTASSIUM CHLORIDES
POTASSIUM COMPOUNDS
POWDERS
RAMAN SPECTROSCOPY
RUBIDIUM CHLORIDES
RUBIDIUM COMPOUNDS
SCATTERING
SPACE GROUPS
SPECTROSCOPY
STABILITY
SYNTHESIS
TRANSURANIUM COMPOUNDS
X-RAY DIFFRACTION