210627-16-0Relevant academic research and scientific papers
Bulky siloxyaluminum alkyls as models for Al2Me6-treated silica gel surfaces. Characterization of a dimethylaniline-stabilized dimethylaluminum cation
Wrobel, Olaf,Schaper, Frank,Brintzinger, Hans H.
, p. 900 - 905 (2008/10/09)
Reaction of a particularly bulky silanol, (2,4,6-Me3C6H2)3SiOH, with Al2Me6 gives, instead of the otherwise preferred unreactive binuclear siloxalanes with two siloxy bridges, a binuclear s
Methyl-versus-chloride exchange as a measure of electron density at the metal center of ring-substituted zirconocene complexes
Weiser, Ulrich,Babushkin, Dimitrii,Brintzinger, Hans-Herbert
, p. 920 - 923 (2008/10/08)
Methyl-versus-cloride exchange equilibria between different zirconocene complexes provide a sensitive measure of relative electron densities at the Zr centers of these complexes. As expected, methyl and trimethyl silyl substituents increase the electron density at the Zr center of a bis(cyclopentadienyl) Zr(IV) complex; the same holds for a dimethyl silyl bridge. In bis(indenyl) complexes, on the other hand, electron density at the metal center is reduced and substituent and bridge effects are different from those observed in bis(cyclopentadienyl) Zr(IV) complexes.
