Seven-co-ordination in chlorohexakis(trimethylphosphine oxide)-uranium(IV) trichloride: crystal and molecular structure
- 1 January 1976
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 8,p. 735-738
- https://doi.org/10.1039/dt9760000735
Abstract
The structure to the title compound has been determined by single-crystal X-ray diffraction methods from diffractometer data and refined to a final R of 0.0023. The compound crystallises in space group R3c with ahex= 18.447(3), chex= 19.348(3)Å.Z= 6. The uranium atom is co-ordincate to one chlorine (U–Cl 2.813 Å) and six oxygen atoms (mean U–O 2.26 Å): the co-ordination polyhedron can be described as a distorted monocapped trigonal antiprism or as a distorted monocapped octahedron. The anionic chlorines are more than 6.22 Å from the uranium atoms. The results are discussed in relation to spectral data for this and related uranium(IV) complxes.Keywords
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