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Self‐Assembly of Two Different Hierarchical Nanostructures on Either Side of an Organic Supramolecular Film in One Step
Author(s) -
Shi Naien,
Yin Gui,
Han Min,
Jiang Lei,
Xu Zheng
Publication year - 2008
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200702032
Subject(s) - supramolecular chemistry , nanostructure , porphyrin , hydrogen bond , benzene , tricarboxylic acid , materials science , fourier transform infrared spectroscopy , carboxylic acid , chemistry , photochemistry , crystallography , chemical engineering , nanotechnology , polymer chemistry , organic chemistry , crystal structure , molecule , enzyme , citric acid cycle , engineering
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 H 2 O/CHCl 3 interface. The surface of the film that faces water is composed of nanoprism arrays, whereas the surface facing CHCl 3 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.