Molecular octa-uranium rings with alternating nitride and azide bridges

被引：196

作者：

Evans, WJ ^{[1
]}

Kozimor, SA ^{[1
]}

Ziller, JW ^{[1
]}

机构：

[1] Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA

来源：

SCIENCE | 2005年 / 309卷 / 5742期

关键词：

D O I：

10.1126/science.1116452

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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, (UNUN3)(4) have been synthesized by reduction of sodium azide with organometaltic metallocene derivatives, [(C5Me4R)(2)U][(mu-Ph)(2)BPh2] (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.

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页码：1835 / 1838

页数：4

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