Organosilica spheres covalently functionalized with diphenylanthracene and viologen units.

@article{lvaro2010OrganosilicaSC,
  title={Organosilica spheres covalently functionalized with diphenylanthracene and viologen units.},
  author={Mercedes {\'A}lvaro and Giorgia Bizzoca and Bel{\'e}n Ferrer and Hermenegildo Garc{\'i}a and Maykel de Miguel and Laura Teruel},
  journal={Chemphyschem : a European journal of chemical physics and physical chemistry},
  year={2010},
  volume={11 16},
  pages={3456-64}
}
Organosilica spheres functionalized with two different photoactive units, diphenylanthracene, DPA@SPH, and viologen, VIO@SPH, covalently linked to the silica framework are prepared. These new materials have a uniform diameter, 300 nm for the DPA@SPH and 550 nm for the VIO@SPH, and exhibit the typical photochemical response of the organic moieties. It is observed that organic radical cations incorporated in the structure of the functionalized silica spheres are remarkably persistent. Due to… CONTINUE READING