922165-89-7

Upstream product

• 852457-56-8 [(η5-1,3-(SiMe2-η-N-t-Bu)2-cyclopentadienyl)(methyl)zirconium] 
• 1109-15-5 tris(pentafluorophenyl)borate 

Downstream Products

• 922165-91-1 (zirconium)(C₅H₃(SiMe₂NtBu)2)(C₆F₅) 
• 922165-90-0 (zirconium)(C₅H₃(SiMe₂NtBu)2)(fluoride) 

Relevant academic research and scientific papers

MMA Polymerization with Group 4 Alkyl-Free 14-Electron d0 Species

Cationic 1,2 and 1,3 doubly constrained geometry di(silylamido)cyclopentadienyl zirconium complexes, whilst being group 4 alkyl-free 14-electron d0 species, promote the polymerization of MMA. Different cocatalysts such as B(C6F5

Evidence of fluoride transfer from the anion of [Zr{C5H 3[SiMe2(η1-NtBu)]2}] +[RB(C6F5)3]- complexes to the zirconocenium cation

(Chemical Equation Presented) C-F bond activation: In the presence of a phosphane, deactivation of cationic zirconium complexes can occur by direct fluoride migration to the zirconium center, that is, the breaking of a C-F bond - the strongest bond of organic molecules - without previous C6F 5 transfer to the metal atom (see picture).