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| Study on Self-assembled Multilayer Film Formed by a Bipolar Hemicyanine Derivative and H_2SiW_(12)O_(40) |
| Wang Liying;Gao Lihua;Wang Kezhi |
| School of Chemical and Environmental Engineering, Beijing Technology and Business University;Department of Chemistry, Beijing Normal University |
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Abstract A new self-assembled multilayer film is prepared by alternating adsoiption of tLiSiWi2 O4O and a hemicyanine derivative. UV-vis spectroscopy and X-ray diffraction analysis demonstrate that the film is uniformly deposited up to at least 12 layers with mean film thickness being 5.3 run per layer (the hemicyanine cation layer and SiWiaO^)" layer) , and that the charge transfer occurs between H^SiW^O^ and the hemicyanine derivative in the film. Cyclic voltammetry shows that this novel inorganic-organic composite film is of good electrochemical activity.
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