174904-57-5

Basic information

• Product Name: 1-chloro-3-(η(5)-methylcyclopentadienyltricarbonyltungsten)octamethyltetrasilane
• CAS NO: 174904-57-5
• Molecular Weight: 615.076
• Mol File: 174904-57-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1-chloro-3-(η(5)-methylcyclopentadienyltricarbonyltungsten)octamethyltetrasilane(CAS DataBase Reference)
• NIST Chemistry Reference: 1-chloro-3-(η(5)-methylcyclopentadienyltricarbonyltungsten)octamethyltetrasilane(174904-57-5)
• EPA Substance Registry System: 1-chloro-3-(η(5)-methylcyclopentadienyltricarbonyltungsten)octamethyltetrasilane(174904-57-5)

Safety Data

• Hazardous Substances Data: 174904-57-5(Hazardous Substances Data)

Upstream product

• 754-75-6 1,4-dichloropermethyltetrasilane 

Relevant articles and documents

Syntheses of tungsten-substituted oligosilanes

By way of alkali halide elimination, monotungsten- and ditungsten-substituted oligosilanes can be obtained. The polarity of the solvent used and the leaving groups at silicon have a strong influence on the syntheses. Heterogeneous reactions (apolar solvent) result in monotungsten compounds, whereas homogeneous conditions (mixture of solvents) shorten the reaction time and lead to α,ω-ditungs-tensilanes. Using this modified alkali halide elimination method, the new permethylated silicon-tungsten compounds Cl-(SiMe2)n-Wp and Wp-(SiMe2)n-Wp (n = 3, 4; Wp = W(CO)3cp) were isolated. In addition, the synthesis of the first perhydrogenated α,ω-ditungsten oligosilanes Wp-(SiH2)n-Wp (n = 2, 3) is reported. Cyclic silanes with a tungsten substituent and further reactive groups in the molecule are obtained by selective reaction of the triflate group at silicon.