Synthesis, electronic properties, and self-assembly on Au{111} of thiolated phenylethynyl phenothiazines
Thiolated phenylethynyl phenothiazines can be regarded as redox-active “alligator clips”. They are readily synthesized from ethynyl phenothiazines and show intense blue-green luminescence upon ultraviolet (UV) excitation. Cyclic voltammetry reveals reversible oxidation, also after the chemisorption...
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| Hauptverfasser: | , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2010
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| In: |
Chemistry of materials
Year: 2010, Jahrgang: 22, Heft: 1, Pages: 52-63 |
| ISSN: | 1520-5002 |
| DOI: | 10.1021/cm901514t |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1021/cm901514t
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| Verfasserangaben: | Christa S. Barkschat, Svetlana Stoycheva, Michael Himmelhaus, and Thomas J.J. Müller |
| Zusammenfassung: | Thiolated phenylethynyl phenothiazines can be regarded as redox-active “alligator clips”. They are readily synthesized from ethynyl phenothiazines and show intense blue-green luminescence upon ultraviolet (UV) excitation. Cyclic voltammetry reveals reversible oxidation, also after the chemisorption of in situ liberated thiols on gold electrodes. The chemisorption on Au{111} was studied by ellipsometry, contact angle measurements, X-ray photoelectron spectroscopy, and infrared reflection absorption spectroscopy, and the obtained data support the formation of self-assembled monolayers, depending on the structure of the substrates. These findings classify them as promising candidates for molecular wires switchable by redox manipulation. |
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| Beschreibung: | Revised Manuscript Received November 20, 2009 Gesehen am 01.12.2022 |
| Beschreibung: | Online Resource |
| ISSN: | 1520-5002 |
| DOI: | 10.1021/cm901514t |