To work as magnetic components in molecular electronics and spintronics, single-molecule magnets (SMMs) must be reliably interfaced with metals. The organization on gold of a Fe4 SMM carrying two acetyl-protected thiol groups has been studied by exploiting the surface sensitivity of time-of-flight secondary ion mass spectrometry (ToF-SIMS), additionally powered by the use of an isotopic labeling strategy. Deposition from millimolar dichloromethane solutions results in a higher surface coverage and better packed monolayers as compared with previous protocols based on more diluted solutions. Fe4 complexes are chemically tethered to the surface via a single Au–S bond while they still contain an intact SAc group.
Pasquale Totaro, †., Lorenzo Poggini, ⊥., Annaick Favre, ⊥., Matteo Mannini, †., Philippe Sainctavit, †., Andrea Cornia, ‡., et al. (2014). Tetrairon(III)-single-molecule magnet monolayers on gold: insights from ToF-SIMS and isotopic labelling. LANGMUIR, 30(29), 8645-8649 [DOI: 10.1021/la500846a].
Tetrairon(III)-single-molecule magnet monolayers on gold: insights from ToF-SIMS and isotopic labelling
MAGNANI, AGNESE;
2014-01-01
Abstract
To work as magnetic components in molecular electronics and spintronics, single-molecule magnets (SMMs) must be reliably interfaced with metals. The organization on gold of a Fe4 SMM carrying two acetyl-protected thiol groups has been studied by exploiting the surface sensitivity of time-of-flight secondary ion mass spectrometry (ToF-SIMS), additionally powered by the use of an isotopic labeling strategy. Deposition from millimolar dichloromethane solutions results in a higher surface coverage and better packed monolayers as compared with previous protocols based on more diluted solutions. Fe4 complexes are chemically tethered to the surface via a single Au–S bond while they still contain an intact SAc group.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
https://hdl.handle.net/11365/986044
Attenzione
Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo