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Title: Trimethylsilylcyclopentadienyl (Cp ′ ) Uranium Chemistry: Synthetic and Structural Studies of Cp ′ 4 U and Cp ′ 3 U X ( X = Cl, I, Me)

Journal Article · · Zeitschrift fuer Anorganische und Allgemeine Chemie
 [1];  [1];  [1];  [1]
  1. Department of Chemistry University of California‐Irvine 92697 Irvine CA USA
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Cp′ 4 U (Cp′ = C 5 H 4 SiMe 3 ) was synthesized from: (a) KCp′ and [Cp′ 3 U(THF)][BPh 4 ]; (b) Cp′ 3 U and Cp′ 2 Pb; and (c) [K(2.2.2‐cryptand)][Cp′ 4 U] and AgBPh 4 . The compound was identified by X‐ray crystallography as a rare example of a structurally‐characterized tetrakis(cyclopentadienyl)U IV complex. For comparison, the corresponding Th complex, Cp′ 4 Th, was isolated from the direct combination of ThBr 4 (THF) 4 with excess KCp′. During the preparation of Cp′ 3 UMe, the precursor of the [Cp′ 3 U(THF)][BPh 4 ] reagent used above, it was discovered that the reaction of Cp′ 3 UCl and MeLi gives a mixture of Cp′ 3 UMe and Cp′ 3 UCl that can co‐crystallize better than Cp′ 3 UMe in pure form. The Cp′ 3 UMe/Cp′ 3 UCl mixture forms single crystals suitable for X‐ray crystallography and provides a new way to characterize the oil, Cp′ 3 UMe. Cp′ 3 UCl and Cp′ 3 UI were also crystallographically characterized for comparison with the Cp′ 3 UMe/Cp′ 3 UCl crystals.

Sponsoring Organization:
USDOE
OSTI ID:
1405192
Journal Information:
Zeitschrift fuer Anorganische und Allgemeine Chemie, Journal Name: Zeitschrift fuer Anorganische und Allgemeine Chemie Vol. 643 Journal Issue: 23; ISSN 0044-2313
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

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