Chemistry of trivalent uranium metallocenes: electron-transfer reactions with carbon disulfide. Formation of ((RC/sub 5/H/sub 4/)/sub 3/U)/sub 2/(. mu. -eta/sup 1/,eta/sup 2/-CS/sub 2/)
The trivalent uranium metallocenes (MeC/sub 5/H/sub 4/)/sub 3/U x THF and (Me/sub 3/SiC/sub 5/H/sub 4/)/sub 3/U react with CS/sub 2/ to form the binuclear U(IV) complexes ((RC/sub 5/H/sub 4/)/sub 3/U)/sub 2/(..mu..-eta/sup 1/,eta/sup 2/-CS/sub 2/) (1, R = Me; 2, R = SiMe/sub 3/). Crystals of 1 are monoclinic, P2/sub 1//n, with a = 14.127 (4) A, b = 14.182 (4) A, c = 8.123 (2) A, and ..beta.. = 92.36 (3)/sup 0/ at 23/sup 0/C; for Z = 2 the calculated density is 2.097 g/cm/sup 3/. The structure was refined by full-matrix least-squares to a conventional R factor of 0.025, for 1402 data with F/sup 2/ > 2 sigma (F/sup 2/). The central carbon atom of the complex is disordered across a center of symmetry. The geometry about the CS/sub 2/ ligand (U-S = 2.973 (3) A and U-C = 2.53 (2) A), as well as NMR and susceptibility data, is consistent with two full one-electron transfers into the CS/sub 2/. There is no measurable magnetic interaction between the paramagnetic ions to 5 K.
- Research Organization:
- Univ. of California, Berkeley
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 5657992
- Journal Information:
- Inorg. Chem.; (United States), Vol. 25:11
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
CARBON SULFIDES
CHEMICAL REACTIONS
DIENES
ORGANIC COMPOUNDS
CHEMICAL PREPARATION
CRYSTAL STRUCTURE
SILICON COMPLEXES
SILICON COMPOUNDS
TETRAHYDROFURAN
URANIUM COMPLEXES
URANIUM COMPOUNDS
BOND ANGLE
BOND LENGTHS
DENSITY
EXPERIMENTAL DATA
LATTICE PARAMETERS
LIGANDS
ORGANOMETALLIC COMPOUNDS
ACTINIDE COMPLEXES
ACTINIDE COMPOUNDS
CARBON COMPOUNDS
CHALCOGENIDES
COMPLEXES
DATA
DIMENSIONS
FURANS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
INFORMATION
LENGTH
NUMERICAL DATA
ORGANIC OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POLYENES
SULFIDES
SULFUR COMPOUNDS
SYNTHESIS
400702* - Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials
050700 - Nuclear Fuels- Fuels Production & Properties