444673-38-5

Basic information

• Product Name: WCl(η2-C2Ph2)(η6-C6Ph6H)
• CAS NO: 444673-38-5
• Molecular Weight: 933.245
• Mol File: 444673-38-5.mol

Chemical Properties

• CAS DataBase Reference: WCl(η2-C2Ph2)(η6-C6Ph6H)(CAS DataBase Reference)
• NIST Chemistry Reference: WCl(η2-C2Ph2)(η6-C6Ph6H)(444673-38-5)
• EPA Substance Registry System: WCl(η2-C2Ph2)(η6-C6Ph6H)(444673-38-5)

Safety Data

• Hazardous Substances Data: 444673-38-5(Hazardous Substances Data)

Upstream product

• 75-09-2 dichloromethane 
• 444673-37-4 W(η2-PhCCPh)3(NMe3) 
• 501-65-5 diphenyl acetylene 

Relevant articles and documents

WCl(η2-C2Ph2)(η6- C6Ph6H): A compound containing a metallacycloheptatriene unitfrom trimerization of diphenylacetylene with W(NMe3)(η2-C2Ph2)3

W(NCMe)(2-C2Ph2)3 (1) has been previously synthesized by the reaction of W(CO)(η2-C2Ph2)3 with Me3NO in acetonitrile, while the same treatment in THF leads to the trimethylamine complex W(NMe3)(η2-C2Ph2)3 (2). Compound 2 is reactive. Stirring a mixture of 2 and diphenylacetylene in dichloromethane at room temperature affords WCl(η2-C2Ph2)(η6C6 Ph6H) (3), which apparently arises from trimerization of the alkyne ligands concomitant with solvent activation. The structures of 1-3 have been determined by an X-ray diffraction study. A carbene W=C double bond is evidenced in 3.