15131-04-1

Basic information

• Product Name: bromopentacarbonyl tungstate^(0)(1-)
• Synonyms: bromopentacarbonyl tungstate^(0)(1-)
• CAS NO: 15131-04-1
• Molecular Weight: 403.806
• Mol File: 15131-04-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: bromopentacarbonyl tungstate^(0)(1-)(CAS DataBase Reference)
• NIST Chemistry Reference: bromopentacarbonyl tungstate^(0)(1-)(15131-04-1)
• EPA Substance Registry System: bromopentacarbonyl tungstate^(0)(1-)(15131-04-1)

Safety Data

• Hazardous Substances Data: 15131-04-1(Hazardous Substances Data)

Upstream product

• 78709-76-9 {bis(triphenylphosphine)nitrogen}{HW(CO)5} 
• 2534-77-2 exo-2-bromonorbornane 
• 76-29-9 3-bromocamphor 
• 100-39-0 benzyl bromide 
• 768-90-1 1-Adamantyl bromide 
• 108-86-1 bromobenzene 
• 78-76-2 s-butyl bromide 
• 109-65-9 1-bromo-butane 
• 507-19-7 t-butyl bromide 
• 2695-47-8 6-Bromo-1-hexene 

Relevant articles and documents

Relative reactivities of anionic transition-metal hydrides. Reduction of alkyl halides

A comparison of the second-order rate constants for halide displacement from n-BuBr by H- derived from anionic transition-metal hydrides established the following order of reactivity: cis-HW(CO)4P(OMe)3- > cis-HCr(CO)4P(OMe)3- > HW(CO)5- > CpV(CO)3H- > HCr(CO)5- > HRu(CO)4- ? HFe(CO)4- (no reaction). The lack of dependence of reactivity on degree of branching of the alkyl halide for HM(CO)5- (M = Cr, W) and a dramatic diminishing of reactivity for HM(CO)4P(OMe)3-, 1° ? 2° > 3°, resulted in a different order of reactivity on the basis of t-BuBr: HCr(CO)5- > HW(CO)5- > cis-HCr-(CO)4P(OMe)3- > CpV(CO)3H- > cis-HW(CO)4P(OMe)3- ? HFe(CO)4- (no reaction). Mechanistic probes were applied to reactions of HW(CO)5- and cis-HW(CO)4P-(OMe)3-, and preliminary results suggest the former to involve some radical character (single electron transfer) and the latter to react with considerable ionic character (H- transfer).