Template-Directed Synthesis of a Conjugated Zinc Porphyrin Nanoball.
Jonathan CremersRenée HaverMichel RickhausJuliane Q GongLudovic FavereauMartin D PeeksTimothy D W ClaridgeLaura M HerzHarry L AndersonPublished in: Journal of the American Chemical Society (2018)
We report the template-directed synthesis of a π-conjugated 14-porphyrin nanoball. This structure consists of two intersecting nanorings containing six and 10 porphyrin units. Fluorescence upconversion spectroscopy experiments demonstrate that electronic excitation delocalizes over the whole three-dimensional π system in less than 0.3 ps if the nanoball is bound to its templates or over 2 ps if the nanoball is empty.