INOR 267 |
| Porphyrins bearing uracyl motifs at the four meso positions self-organize via homo complementary hydrogen bonds. The morphology of the materials found by deposition of 5,10,15,20 – tetrakis (1-butyl-6-uracyl) porphyrinato Zn(II) (TUrZnP) depends on a verity of environmental conditions. For example, atomic force microscopy (AFM) measurements reveal that 10 µM solutions in "wet" THF onto mica and glass results in thin films (5-20 nm thick), whereas deposition from "dry" THF yields nanofibers and nanorods on mica and glass. The variables that influence the morphology of the deposit material will be presented. These materials were further characterized by fluorescence microscopy and UV-Vis absorption spectroscopy. The investigation of these nanoscopic materials is relevant to solar energy harvesting in terms of self-organized antenna complex found in chlorophyll molecules in nature. |
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Nanoscience: Applications
7:00 PM-10:00 PM, Sunday, August 19, 2007 BCEC -- Exhibit Hall - B2, Poster
Division of Inorganic Chemistry |