956597-04-9

Basic information

• Product Name: [Sc(C₅(CH₃)4Si(CH₃)2C₆H₅)(CH₂C₆H₅)2(C₄H₈O₂)]
• CAS NO: 956597-04-9
• Molecular Weight: 570.783
• Mol File: 956597-04-9.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: [Sc(C₅(CH₃)4Si(CH₃)2C₆H₅)(CH₂C₆H₅)2(C₄H₈O₂)](CAS DataBase Reference)
• NIST Chemistry Reference: [Sc(C₅(CH₃)4Si(CH₃)2C₆H₅)(CH₂C₆H₅)2(C₄H₈O₂)](956597-04-9)
• EPA Substance Registry System: [Sc(C₅(CH₃)4Si(CH₃)2C₆H₅)(CH₂C₆H₅)2(C₄H₈O₂)](956597-04-9)

Safety Data

• Hazardous Substances Data: 956597-04-9(Hazardous Substances Data)

Upstream product

• 123-91-1 1,4-dioxane 
• 10361-84-9 scandium(III) chloride 
• 6921-34-2 benzylmagnesium chloride 

Relevant articles and documents

Half-sandwich dibenzyl complexes of scandium: Synthesis, structure, and styrene polymerization activity

Half-sandwich dibenzyl complexes of scandium have been prepared by stepwise treatment of scandium trichloride with lithium derivatives of silyl-functionalized tetramethylcyclopentadienes (C5Me4H)SiMe2R (R = Me, Ph) and benzyl magnesium chloride. The resulting complexes [Sc(η5-C5Me4SiMe3)(CH2Ph)2(THF)] and [Sc(η5-C5Me4SiMe2Ph)(CH2Ph)2(1,4-dioxane)] show structure related to that of the corresponding bis(trimethylsilylmethyl) compounds [Sc(η5-C5Me4SiMe2R)(CH2SiMe3)2(THF)]. The four-coordinate complexes display η1-coordinated benzyl ligands without significant interaction of the ipso-carbon of the phenyl moiety. Conversion of [Sc(η5-C5Me4SiMe3)(CH2Ph)2(THF)] into the cationic species by treatment with triphenylborane in THF led to the formation of a stable charge separated complex [Sc(η5-C5Me4SiMe3)(CH2Ph)(THF)x][BPh3(CH2Ph)]. Benzyl cation formed using [Ph3C][B(C6F5)4] in toluene resulted in a moderately active syndiospecific styrene polymerization catalyst.