期刊
CHEMICAL SCIENCE
卷 6, 期 4, 页码 2268-2274出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5sc00163c
关键词
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资金
- European Research Council [267746]
- Italian MIUR through FIRB [RBFR10OAI0, RBAP117RWN]
- Ente Cassa di Risparmio di Firenze
The control of the charge distribution in a monolayer of switchable cobalt-dioxolene complexes undergoing Valence Tautomerism (VT) has been achieved by means of thermal and optical stimuli. Thiol-derivatised VT molecules have been grafted on polycrystalline gold surface as monolayers from solution. X-ray photoelectron spectroscopy and time-of-flight secondary ions mass spectrometry evidenced the formation of a covalent bond between intact VT molecules and the surface and excluded the presence of physisorbed molecules. X-ray absorption spectroscopy revealed that the temperature- and light-induced conversion profiles of the monolayer closely reproduce the ones found for the crystalline phase. This study demonstrates that a wet chemistry based approach allows to transfer switchable paramagnetic molecules at the nanoscale, widening the playground to develop new hybrid molecular based architectures for novel technologies.
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