Three-Legged 2,2′-Bipyridine Monomer at the Air/Water Interface: Monolayer Structure and Reactions with Ni(II) Ions from the Subphase
| Autor: | Wenyang Dai, Wasim Abuillan, Zhikun Zheng, Lay-Theng Lee, Benjamin Zelenay, Andreas Borgschulte, Motomu Tanaka, Oleg Konovalov, Max Döbeli, A. Dieter Schlüter, Andri Schütz |
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| Rok vydání: | 2017 |
| Předmět: |
Brewster's angle
02 engineering and technology Surfaces and Interfaces 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Rutherford backscattering spectrometry 01 natural sciences 2 2'-Bipyridine 0104 chemical sciences symbols.namesake Crystallography chemistry.chemical_compound Bipyridine Monomer X-ray photoelectron spectroscopy chemistry Microscopy Monolayer Electrochemistry symbols General Materials Science 0210 nano-technology Spectroscopy |
| Zdroj: | Langmuir. 33:1646-1654 |
| ISSN: | 1520-5827 0743-7463 |
| DOI: | 10.1021/acs.langmuir.6b04282 |
| Popis: | The behavior of compound 2 [1,3,5-tri(2,2′-bipyridin-5-yl)benzene] with three bipyridine units arranged in a star geometry is investigated in the presence and absence of Ni(ClO4)2. Its properties at the air–water interface as well as after transfer onto a solid substrate are studied by several techniques including Brewster angle microscopy, X-ray reflectivity, neutron reflectivity, X-ray photoelectron spectroscopy, Rutherford backscattering spectrometry, and atomic force microscopy combined with optical microscopy. It is found that compound 2 within the monolayers formed stays almost vertical at the interface and that at high Ni2+/2 (Ni2+/2 = 4000, 20′000) ratios two of the three bipyridine units of 2 are complexed, resulting in supramolecular sheets that are likely composed of arrays of linear metal–organic complexation polymers. |
| Databáze: | OpenAIRE |
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