Size and Shape of the Templating Molecule

From the nucleation and growth mechanism, it is obvious that the size and the shape of the SDA determine the size and the shape of the pore of the porosil. 

From sorption experiments the efficacy of a sorbate has been measured as heat of adsorption and described as nest effect , relating size and shape of the sorbate with the surface curvature of the pore [48]. Recently, host-guest complexes have been formulated quantitatively in terms of van der Waals interactions. Lewis et al. [47] calculated the nonbonded interactions energy of the SDA within the cavities of different silica zeoHtes, which was in good agreement with the experimental synthesis experience. The computational strategy developed in this study should stimulate the systematic search for new effective SDAs for the synthesis of new porosil structures with tailored pore geometry [49]. 

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