Formation of dense nitroxide radical layers on the Au(111) substrate for ESN-STM measurement

Krukowski, Pawel; Kozlowski, W.; Olejniczak, W.; Klusek, Z.; Puchalski, Michał; Dąbrowski, P.; Kowalczyk, P.J.; Gwoździński, Krzysztof; Grabowski, Grzegorz

doi:10.1016/j.apsusc.2008.06.175

Cited by 16 publications

(12 citation statements)

References 24 publications

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“…2 Appropriately functionalized organic molecules can selfassemble into ordered networks on metal surfaces 3,4 and can be used as building blocks for the formation of systems with peculiar magnetic properties, associated with the metal ions incorporated into their framework. 5 Recently, some studies have been devoted to the preparation of surfaces whose magnetic properties are induced by the presence of organic open-shell species, such as polychlorotriphenylmethyl (PTM), 6 nitroxide, [7][8][9] or galvinoxyl 10 radicals. PTM derivatives are persistent and stable paramagnetic species, because of the electronic effects of the three pairs of chlorine atoms at the ortho position with respect to the central carbon atom (C central ), where most of the spin density is formally localized.…”

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confidence: 99%

An ordered organic radical adsorbed on a Cu-doped Au(111) surface

et al. 2012

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The tri-para-carboxylic polychlorotriphenylmethyl radical adsorption on a Cu/Au(111) surface has been investigated in ultra-high vacuum environment. The presence of copper favours the formation of metal-organic assemblies, which are analysed using scanning tunnelling microscopy (STM) and high resolution electron energy loss spectroscopy (HREELS). DFT methods indicate that the unpaired electron survives after adsorption, thus creating systems which could be regarded as potential candidates for spintronics applications.

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confidence: 99%

An ordered organic radical adsorbed on a Cu-doped Au(111) surface

et al. 2012

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“…We registered only stable molecular layers. The observed molecular diffusion was not significant in comparison with TEMPOL terraces and clusters …”

Section: Resultsmentioning

confidence: 81%

“…The observed molecular diffusion was not significant in comparison with TEMPOL terraces and clusters. [21] The 50 nm × 50 nm area of the HOPG covered by (TEMPO) 3 O 3 P molecules is presented in Fig. 7.…”

Section: Stm Investigationsmentioning

confidence: 99%

“…[21] To extend the knowledge in this field, we have decided to investigate larger TEMPO derivatives. Investigating advanced properties of organic compounds may allow an adaptation of well-known or abandoned compounds to present and future scientific and technological requirements.…”

Section: Introductionmentioning

confidence: 99%

“…Recent studies have demonstrated the paramagnetic behaviour and the ability to create highly ordered structures of TEMPO and its smaller derivatives like TEMPOL (4‐hydroxy‐2,2,6,6‐tetramethylpiperidine‐1‐oxyl) and ISL (4‐(2‐iodoacetamido)‐2,2,6,6‐tetramethylpiperidine‐1‐oxyl) . To extend the knowledge in this field, we have decided to investigate larger TEMPO derivatives.…”

Section: Introductionmentioning

confidence: 99%

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The study of paramagnetic self‐assembled monolayers formed by nitroxide radical (TEMPO)₃O₃P on HOPG

Naruszewicz

Busiakiewicz

Grabowski

et al. 2013

Surface & Interface Analysis

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aThe studies of (TEMPO) 3 O 3 P molecules (tri-(2,2,6,6-tetramethyl-1-oxyl-4-piperidyl) phosphite) and their monolayers formed on highly oriented pyrolytic graphite (HOPG) are presented. (TEMPO) 3 O 3 P is synthesized from TEMPOL precursor (4-hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl). We focused on electron paramagnetic resonance (EPR) and scanning tunnelling microscopy (STM) investigations. The EPR experiments demonstrate the paramagnetism of (TEMPO) 3 O 3 P in powdered form and in solution. Furthermore, these paramagnetic properties of (TEMPO) 3 O 3 P are preserved after the deposition on HOPG substrate. The STM studies show that (TEMPO) 3 O 3 P molecules have a strong tendency to form self-assembled monolayers (SAMs). The detailed STM images let us to explore the structure of (TEMPO) 3 O 3 P on HOPG and propose a structural model for the observed SAMs.

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Spin Labels and Spin Probes

Bardelang

Hardy

Ouari

et al. 2012

Encyclopedia of Radicals in Chemistry, Biology and Materials

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The electron paramagnetic resonance (EPR) parameters of a free radical depend strongly on its microenvironment and stable radicals can be used as reporter molecules for the EPR probing of various chemical and biological systems. Nowadays, nitroxides and trityl radicals are the most important spin labels or spin probes and their use in various applications, spin labeling, spin trapping, oximetry, pH measurement, evaluation of redox status, interactions in supramolecular systems, and so on, are examined.

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Formation of dense nitroxide radical layers on the Au(111) substrate for ESN-STM measurement

Cited by 16 publications

References 24 publications

An ordered organic radical adsorbed on a Cu-doped Au(111) surface

An ordered organic radical adsorbed on a Cu-doped Au(111) surface

The study of paramagnetic self‐assembled monolayers formed by nitroxide radical (TEMPO)₃O₃P on HOPG

Spin Labels and Spin Probes

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Formation of dense nitroxide radical layers on the Au(111) substrate for ESN-STM measurement

Cited by 16 publications

References 24 publications

An ordered organic radical adsorbed on a Cu-doped Au(111) surface

An ordered organic radical adsorbed on a Cu-doped Au(111) surface

The study of paramagnetic self‐assembled monolayers formed by nitroxide radical (TEMPO)3O3P on HOPG

Spin Labels and Spin Probes

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The study of paramagnetic self‐assembled monolayers formed by nitroxide radical (TEMPO)₃O₃P on HOPG