Analysis of the optical spectrum of Np(BD/sub 4/)/sub 4/ diluted in Zr(BD/sub 4/)/sub 4/ and the magnetic properties of Np(BH/sub 4/)/sub 4/ and Np(BH/sub 3/CH/sub 3/)/sub 4/

Journal Article · Fri Jun 15 04:00:00 EDT 1984 · J. Chem. Phys.; (United States)

OSTI ID:7025980

Rajnak, K; Banks, R H; Gamp, E; Edelstein, N

The optical spectrum of Np(BD/sub 4/)/sub 4//Zr(BD/sub 4/)/sub 4/ is reported and analyzed. The parameter values obtained are consistent with those for U(BD/sub 4/)/sub 4//Hf(BD/sub 4/)/sub 4/. A total of 46 levels were fit with sigma = 84 cm/sup -1/. EPR data on Np(BD/sub 4/)/sub 4//Zr(BD/sub 4/)/sub 4/ and Np(BH/sub 3/CH/sub 3/)/sub 4//Zr(BH/sub 3/CH/sub 3/)/sub 4/ and the magnetic susceptibility of Np(BH/sub 3/CH/sub 3/)/sub 4/ are reported. They could be fit with the eigenvectors from the optical analysis only by the inclusion of orbital reduction factors k = 0.885 for Np(BD/sub 4/)/sub 4/ and 0.862 for Np(BH/sub 3/CH/sub 3/)/sub 4/. These values indicate greater covalency for the methylborohydride.

• Research Organization: Materials and Molecular Research Division, Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720
• OSTI ID: 7025980
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 80:12; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ABSORPTION SPECTRA
ACTINIDE COMPOUNDS
BOROHYDRIDES
BORON COMPOUNDS
ELECTRON SPIN RESONANCE
HYDROGEN COMPOUNDS
LOW TEMPERATURE
MAGNETIC PROPERTIES
MAGNETIC RESONANCE
MAGNETIC SUSCEPTIBILITY
NEPTUNIUM COMPOUNDS
PHYSICAL PROPERTIES
RESONANCE
SPECTRA
TRANSITION ELEMENT COMPOUNDS
TRANSURANIUM COMPOUNDS
ULTRALOW TEMPERATURE
URANIUM BOROHYDRIDES
URANIUM COMPOUNDS
VERY LOW TEMPERATURE
ZIRCONIUM COMPOUNDS