Self-assembly of two different hierarchical nanostructures on either side of an organic supramolecular film in one step |
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| Authors: | Shi Naien E Yin Gui Han Min Jiang Lei Xu Zheng |
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| Affiliation: | State Key Laboratory of Coordination Chemistry, National Laboratory of Solid State Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P.R. China. |
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| Abstract: | We fabricated different hierarchical organic nanostructures on each side of a supramolecular film, by using hydrogen-bonding interactions between tetrapyridylporphyrin and benzene-1,3,5-tricarboxylic acid at the H2O/CHCl3 interface. The surface of the film that faces water is composed of nanoprism arrays, whereas the surface facing CHCl3 is composed of three-dimensional sunflower-like hierarchical micro- and nanostructures. FTIR spectral evidence showed that all pyridyl groups of the tetrapyridylporphyrin hydrogen bonded to the carboxylic acid groups of 1,3,5-benzene-tricarboxylic acid. The aggregation modes of porphyrin presented in this supramolecular film were studied by UV/Vis and fluorescence spectroscopy. Moreover, each side of the film exhibits distinct soakage properties. |
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| Keywords: | hierarchical interface hydrogen bonds organic nanostructures self‐assembly supramolecular films |
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