69517-44-8

Basic information

• Product Name: trismethyluranium
• Synonyms: trismethyluranium
• CAS NO: 69517-44-8
• Molecular Weight: 734.224
• Mol File: 69517-44-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: trismethyluranium(CAS DataBase Reference)
• NIST Chemistry Reference: trismethyluranium(69517-44-8)
• EPA Substance Registry System: trismethyluranium(69517-44-8)

Safety Data

• Hazardous Substances Data: 69517-44-8(Hazardous Substances Data)

Upstream product

• 1286281-71-7 U(H₂C=PPh₃)[N(SiMe₃)2]3 

Downstream Products

• 113678-08-3 ((Si(CH₃)3)2N)3U(CN(C₆H₁₁))CH₃ 
• 99646-26-1 (((CH₃)3Si)2N)3UO(C₆H₃(CH₃)2) 
• 107164-08-9 (((CH₃)3Si)2N)3UOC(CH₃)2(C₆H₅) 
• 113765-77-8 (((CH₃)3Si)2N)3UOC(CH₃)(C₅H₁₀) 
• 107145-76-6 (((CH₃)3Si)2N)3UOC(CH₃)2(CH₂C₆H₅) 
• 78-92-2 iso-butanol 

Relevant articles and documents

Synthesis of a phosphorano-stabilized U(IV)-carbene via one-electron oxidation of a U(III)-Ylide adduct

Addition of the Wittig reagent Ph3P=CH2 to the U(III) tris(amide) U(NR2)3 (R = SiMe3) generates a mixture of products from which the U(IV) complex U=CHPPh3(NR 2)3 (2) can be obtained. Complex 2 features a short UdC bond and represents a rare example of a uranium carbene. In solution, 2 exists in equilibrium with the U(IV) metallacycle U(CH2SiMe 2NR)(NR2)2 and free Ph3P=CH 2. Measurement of this equilibrium as a function of temperature provides ΔHrxn = 11 kcal/mol and ΔSrxn = 31 eu. Additionally, the electronic structure of the U=C bond was investigated using DFT analysis.