121962-47-8

Basic information

• Product Name: cis-dicarbonylbis{η4-exo-1-(dicarbonyl(η5-cyclopentadienyl)ferrio)-endo-1-methyl-2.5-diphenylsilole}tungesten*2(toluene)
• CAS NO: 121962-47-8
• Molecular Weight: 1272.86
• Mol File: 121962-47-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: cis-dicarbonylbis{η4-exo-1-(dicarbonyl(η5-cyclopentadienyl)ferrio)-endo-1-methyl-2.5-diphenylsilole}tungesten*2(toluene)(CAS DataBase Reference)
• NIST Chemistry Reference: cis-dicarbonylbis{η4-exo-1-(dicarbonyl(η5-cyclopentadienyl)ferrio)-endo-1-methyl-2.5-diphenylsilole}tungesten*2(toluene)(121962-47-8)
• EPA Substance Registry System: cis-dicarbonylbis{η4-exo-1-(dicarbonyl(η5-cyclopentadienyl)ferrio)-endo-1-methyl-2.5-diphenylsilole}tungesten*2(toluene)(121962-47-8)

Safety Data

• Hazardous Substances Data: 121962-47-8(Hazardous Substances Data)

Upstream product

• 121919-41-3 dicarbonyl(η5-cyclopentadienyl)(1-methyl-2,5-diphenylsilacyclopentadien-1-yl)iron 
• 12129-70-3 carbonyhltungsten⁽⁰⁾(cycloocta-1,5-diene) 

Downstream Products

• 121919-49-1 cis-dicarbonylbis(η4-exo-1-benzyl-endo-1-methyl-2,5-diphenylsilole)tungsten 
• 12078-28-3 dicarbonylcyclopentadienyliodoiron(II) 
• 121919-48-0 cis-dicarbonylbis(η4-exo-1-methoxy-endo-1-methyl-2,5-diphenylsilole)tungsten 

Relevant articles and documents

Coordination chemistry of group 14 metalloles. 5. Use of dicarbonyl (η5-cyclopentadienyl) (1-methyl-2,5-diphenyl-silacyclopentadien-1-yl)iron as a four-electron ligand: Chemical properties and dynamic stereochemistry of the complexes

Chlorine is displaced in 1-chloro-1-methyl-2,5-diphenylsilole by dicarbonyl(η5-cyclopentadienyl)ferrate(I) to give a silole with a Si-Fe σ bond. Attempts to displace the carbonyl ligands to give the corresponding silaferrocene were unsuccessful. This new silole behaves as an efficient η4-ligand with transition metals, giving a new series of complexes which present an interesting reactivity. Thus the Si-Fe bond can be cleaved without decoordination of the η4-ligand, and the Co-Co bond in (CO)6(η4-silole)Co2 can be cleaved without cleavage of the Fe-Si bond. These η4-complexes are fluxional as observed for other series. The interconversion, in solution, of the two enantiomers cis-Δuu and cis-Λuu has an activation energy of ～35 kJ mol-1 and a coalescence temperature of ～ 200 K. However, contrary to other cases, the presence of diastereoisomers cannot be detected.