Affiliation:
1. Department of Chemistry, University of California, Irvine, CA 92697–2025, USA.
Abstract
Uranium nitrides offer potential as future nuclear fuels and as probes of metal ligand multiple bonding involving the f-block actinide metals. However, few molecular examples are available for study owing to the difficulties in synthesis. Recent advances in organoactinide chemistry have provided a route to uranium nitride complexes that expands the options for developing UN chemistry. Several 24-membered uranium nitrogen rings, (UNUN
3
)
4
, have been synthesized by reduction of sodium azide with organometallic metallocene derivatives, [(C
5
Me
4
R)
2
U][(μ-Ph)
2
BPh
2
] (R = Me, H; Me = methyl, Ph = phenyl). The nanometer-sized rings contain unusual UNU nitride linkages that have short U-N distances within the double-bond range.
Publisher
American Association for the Advancement of Science (AAAS)
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