813459-83-5Relevant academic research and scientific papers
Neutral and zwitterionic group 4 metal alkyls with ancillary boroxide ligands
Cole, Sarah C.,Coles, Martyn P.,Hitchcock, Peter B.
, p. 3428 - 3430 (2004)
The boroxide anion, [OB(mes)2]-, has been applied as an ancillary ligand to generate electron-deficient group 4 metal alkyls; however, the enhanced electrophilicity results in formation of tight ion-pairs in solution.
Boroxide complexes of the group 4 metals: A noninnocent ligand in olefin polymerization
Cole, Sarah C.,Coles, Martyn P.,Hitchcock, Peter B.
, p. 3279 - 3289 (2008/10/09)
The synthesis of a series of group 4 metal complexes supported by the boroxide anion, was analyzed along with their application in α-olefin polymerization. The compounds were synthesized from MCl4(THF) n and 2 equiv of lithiated dimesitylborinic acid. The four-coordinate titanium bis(amide) complex was prepared by protonolysis of the titanium-tetra(amide) using the parent borinic acid. The results show that a well-defined cationic titanium compound was generated in solution; however, strong interaction with the anion prevented the system from being active for polymerization.
