Well-defined silica supported aluminum hydride: another step towards the utopian single site dream?

ABSTRACT: Reaction of triisobutylaluminum with SBA15₇₀₀ at room temperature occurs by two parallel pathways involving either silanol or siloxane bridges. It leads to the formation of a well-defined bipodal [([triple bond, length as m-dash]SiO)₂Al-CH₂CH(CH₃)₂] 1a, silicon isobutyl [[triple bond, length as m-dash]Si-CH₂CH(CH₃)₂] 1b and a silicon hydride [[triple bond, length as m-dash]Si-H] 1c. Their structural identity was characterized by FT-IR and advanced solid-state NMR spectroscopies (¹H, ¹³C, ²⁹Si, ²⁷Al and 2D multiple quantum), elemental and gas phase analysis, and DFT calculations. The reaction involves the formation of a highly reactive mono

SUBMITTER: Werghi B 

PROVIDER: S-EPMC5505125 | biostudies-literature | 2015 Oct

REPOSITORIES: biostudies-literature