The Synthesis of Chiral Periodic Organosilica Materials with Ultrasmall Mesopores

摘要

The assembly of small molecule precursors into helical architectures is a common motif in nature, and is often a critical component of the function of the resulting supra-molecular assemblies, such as in DNA. Inspired by these architectures, materials chemists have prepared similar morphologies in the lab, for example by the application of templated sol-gel methods. Interestingly, helical materials can be prepared in the absence of other chiral directors, for example using achiral surfactants, but these techniques lead to equal amounts of both helical forms. For non-racemic helical structures, specially designed chiral, enantiomerically enriched surfactants are required.