Self-Assembly of Biphenylene-Bridged Hybrid Mesoporous Solid with Molecular-Scale Periodicity in the Pore Walls

The chemistry of hybrid materials obtained from organic-bridged silane precursors is very successful in opening new routes for synthesis of hybrid mesoporous materials. Several reports are available on-CH2-,-CH2-CH2-,-CHdCH-,-C6H4-, and thiophene-bridged mesoporous polysilsesquioxanes of different morphologies.1-3 Remarkable advances have already been achieved in the fabrication of templated sol-gel materials (so-called hybrid mesoporous polysilsesquioxanes) with desirable morphology. This includes thin films, particulate materials, and patterns printed on solid substrates by employing pen lithography and ink-jet printing.4 However, the amorphous pore walls of these materials could hinder their utility for various potential applications. Recently, we reported the surfactant-mediated synthesis of benzene-silica hybrid materials with precise control of the nanoarchitecture possessing well-oriented building blocks of organic and inorganic fragments.5 The materia