Bottom-up assembly of multicomponent coordination-based oligomers
Transition metal complexes allow a high degree of molecular design flexibility through symmetry considerations and ligand architecture, which can be explored for the fabrication of ordered multilayer assemblies through bottom-up approach. Here we describe the preparation of such assemblies, viz. mul...
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| Main Authors: | , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
28 July 2011
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| In: |
The journal of physical chemistry. C, Energy, materials, and catalysis
Year: 2011, Volume: 115, Issue: 33, Pages: 16398-16404 |
| ISSN: | 1932-7455 |
| DOI: | 10.1021/jp201339p |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1021/jp201339p
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| Author Notes: | Prakash Chandra Mondal, Jeyachandran Yekkoni Lakshmanan, Hicham Hamoudi, Michael Zharnikov, and Tarkeshwar Gupta |
| Summary: | Transition metal complexes allow a high degree of molecular design flexibility through symmetry considerations and ligand architecture, which can be explored for the fabrication of ordered multilayer assemblies through bottom-up approach. Here we describe the preparation of such assemblies, viz. multicomponent coordination-based oligomer films on siloxane-based templates by wet-chemical layer-by-layer deposition process. In these films we combined optically rich iron and ruthenium polypyridyl complexes having pendant pyridine groups (so-called metallo-ligands) and a coinage metal (copper or silver) that acted as a linker between the polypyridyl complex moieties. The properties and structural parameters of the primary template and the oligomer films were studied by X-ray photoelectron spectroscopy, near-edge X-ray absorption fine structure spectroscopy, UV-vis spectroscopy, spectroscopic ellipsometry, atomic force microscopy, and contact angle goniometry. A linear increase in the film thickness upon addition of every next layer suggests that the long-range order of the system is determined by the octahedral structure of the metallo-ligand and square-pyramidal/tetrahedral geometry of the coinage metal linker. Spectroscopic data indicate the existence of electronic communication throughout the individual metallo-organic chains. |
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| Item Description: | Gesehen am 07.09.2022 |
| Physical Description: | Online Resource |
| ISSN: | 1932-7455 |
| DOI: | 10.1021/jp201339p |