Molecular heterogeneous catalysts derived from bipyridine-based organosilica nanotubes for C-H bond activation.

ABSTRACT: Heterogeneous metal complex catalysts for direct C-H activation with high activity and durability have always been desired for transforming raw materials into feedstock chemicals. This study described the design and synthesis of one-dimensional organosilica nanotubes containing 2,2'-bipyridine (bpy) ligands in the framework (BPy-NT) and their post-synthetic metalation to provide highly active and robust molecular heterogeneous catalysts. By adjusting the ratios of organosilane precursors, very short BPy-NT with ∼50 nm length could be controllably obtained. The post-synthetic metalation of bipyridine-functionalized nanotubes with [IrCp*Cl(μ-Cl)]₂ (Cp* = η⁵-pentamethylcyclopentadienyl) and [Ir(cod)(OMe)]₂ (cod = 1,5-cyclooctadiene) afforded solid catalysts, I

SUBMITTER: Zhang S 

PROVIDER: S-EPMC5618254 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature