期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 20, 期 41, 页码 9100-9103出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0jm01619e
关键词
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资金
- National Basic Research Program of China [2006CB932100, 2007CB936503]
- National Natural Science Foundation of China [20911130229, 20973043]
- Ministry of Education of P. R. China
We have designed two molecular building blocks, 2,6,11-tricarboxydecyloxy-3,7,10-triundecyloxy triphenylene (asym-TTT) and 2,6,10-tricarboxydecyloxy-3,7,11-triundecyloxy triphenylene (sym-TTT) with asymmetric and symmetric carboxyl groups, to construct distinct supramolecular networks. The supramolecular network of asym-TTT facilitates the formation of the directional-oriented molecular arrays of zinc phthalocyanines (ZnPc). The high-resolution scanning tunneling microscopic (STM) images as well as the density-functional theory (DFT) calculations reveal the preferential adsorption of ZnPc dimers in the anisotropic rearrangement of an asym-TTT supramolecular network. The self-repairing process of the molecular arrays after sweeping ZnPc dimers further confirms the anisotropic reconstruction of the asym-TTT network. The controlled experiments on the symmetrically substituted compound indicate the impact of the asymmetrically substituted carboxyl groups on the supramolecular networks.
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