Display options
Cite
Mannini M, Sorace L, Gorini L, et al. Self-assembled organic radicals on Au(111) surfaces: a combined ToF-SIMS, STM, and ESR study. Langmuir. 2007;23(5):2389-97doi: 10.1021/la062028f.
Mannini, M., Sorace, L., Gorini, L., Piras, F. M., Caneschi, A., Magnani, A., Menichetti, S., & Gatteschi, D. (2007). Self-assembled organic radicals on Au(111) surfaces: a combined ToF-SIMS, STM, and ESR study. Langmuir : the ACS journal of surfaces and colloids, 23(5), 2389-97. https://doi.org/10.1021/la062028f
Mannini, Matteo, et al. "Self-assembled organic radicals on Au(111) surfaces: a combined ToF-SIMS, STM, and ESR study." Langmuir : the ACS journal of surfaces and colloids vol. 23,5 (2007): 2389-97. doi: https://doi.org/10.1021/la062028f
Mannini M, Sorace L, Gorini L, Piras FM, Caneschi A, Magnani A, Menichetti S, Gatteschi D. Self-assembled organic radicals on Au(111) surfaces: a combined ToF-SIMS, STM, and ESR study. Langmuir. 2007 Feb 27;23(5):2389-97. doi: 10.1021/la062028f. Epub 2007 Jan 31. PMID: 17263565.
Copy Download .nbib Format: NLM
Share it on

Langmuir. 2007 Feb 27;23(5):2389-97. doi: 10.1021/la062028f. Epub 2007 Jan 31.

Self-assembled organic radicals on Au(111) surfaces: a combined ToF-SIMS, STM, and ESR study.

Langmuir : the ACS journal of surfaces and colloids

Matteo Mannini, Lorenzo Sorace, Lapo Gorini, Federica M Piras, Andrea Caneschi, Agnese Magnani, Stefano Menichetti, Dante Gatteschi

Affiliations

  1. Department of Chemistry, INSTM RU, University of Florence, via della Lastruccia no. 3, I-50019 Sesto Fiorentino, Italy.

PMID: 17263565 DOI: 10.1021/la062028f

Abstract

Electron spin resonance (ESR), time-of-flight secondary ion mass spectrometry (ToF-SIMS), and scanning tunneling microscopy (STM) have been used in parallel to characterize the deposition on gold surface of a series of nitronyl nitroxide radicals. These compounds have been specifically synthesized with methyl-thio linking groups suitable to interact with the gold surface to form self-assembled monolayers (SAMs), which can be considered relevant in the research for molecular-based spintronics devices, as suggested in recent papers. The degree of the expected ordering on the surface of these SAMs has been tuned by varying the chemical structure of synthesized radicals. ToF-SIMS has been used to support the evidence of the occurrence of the deposition process. STM has shown the different qualities of the obtained SAMs, with the degree of local order increasing as the degree of freedom of the molecules on the surface is decreased. Finally, ESR has confirmed that the deposition process does not affect the paramagnetic characteristics of radicals and that it affords a complete single-layered coverage of the surface. Further, the absence of angular dependence in the spectra indicates that the small regions of local ordering do not give rise to a long-range order and suggests a quite large mobility of the radical on the surface, probably due to the weak interaction with gold provided by the methyl-thio linking group.

Publication Types