A facile approach to prepare phenyl and Rh(I) organometal bridged periodic mesoporous organometalsilica was developed based on surfactant-directed co-condensation of RhCl[PPh 2 -(CH 2 ) 2 Si(OEt 3 ) 3 ] 3 and (OEt) 3 SiPhSi(OEt) 3 . The as-prepared Rh(I)-PPh 2 -PMO(Ph) exhibited matchable catalytic efficiency with the corresponding Rh(PPh 3 ) 3 Cl homogeneous catalyst in water-medium reaction between phenylboronic acid and butyl acrylate or the 1,4-conjugate addition reaction between phenylboronic acid and N,N-dimehytlacyrlmaide, which could be attributed to the high dispersion of Rh(I) active sites, the ordered mesoporous channels and the strong surface hydrophobicity resulting from phenyl fragments embedded in silica walls, leading to the facilitated the diffusion and the adsorption of organic molecules onto the catalyst in aqueous solution. The Rh(I)-PPh 2 -PMO(Ph) could be used repetitively, showing the excellent durability that could be attributed to the effective inhibition of Rh(I) leaching and the high hydrothermal stability of the mesoporous structure.

Mesoporous silica containing multiple organometallic active sites is synthesized using a traditional post‐synthesis complexation technique and a surfactant‐directed assembly approach. Systematic spectroscopic studies and structure analysis indicate that catalytic mesoporous silica with controlled composition and pore structure can be readily synthesized. Catalytic performance examined by an aqueous medium two‐step cascade reaction indicates that these materials possess excellent catalytic activity, reusability, and an interesting synergic effect. This work provides novel synthesis platforms towards multifunctional catalysts for more efficient chemical transformations.

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A novel type of magnetic nanoparticle-based artificial cleavage reagent for single-stranded DNA was designed and synthesized by binding a molecular scissor on the surface of magnetic nanoparticles. This cleavage reagent not only was effective but also presented satisfying cleavage specificity. Most importantly, the magnetic nanoparticles greatly facilitate the isolation of cleaved products.