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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Gambardella, Alessandro
Istituto Ortopedico Rizzoli
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2023Near-Surface Nanomechanics of Medical-Grade PEEK Measured by Atomic Force Microscopycitations
- 2020Ultrathin hydroxyapatite coating on pure magnesium substrate prepared by pulsed electron ablation techniquecitations
- 2017Pulsed Electron Deposition of nanostructured bioactive glass coatings for biomedical applicationscitations
- 2017Plasma-assisted deposition of bone apatite-like thin films from natural apatitecitations
- 2015Tough and adhesive nanostructured calcium phosphate thin films deposited by the Pulsed Plasma Deposition methodcitations
- 2007Isolated heterometallic Cr7Ni rings grafted on Au(111) surfacecitations
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article
Isolated heterometallic Cr7Ni rings grafted on Au(111) surface
Abstract
<p>A study of the deposition of heterometallic antiferromagnetically coupled rings onto gold surfaces is reported. Two new {Cr<sub>7</sub>Ni} rings, [NH <sub>2</sub><sup>n</sup>Pr<sub>2</sub>][Cr<sub>7</sub>NiF<sub>8</sub>(3-tpc) <sub>16</sub>] (1) (where 3-tpc = 3-thiophenecarboxylate) and [ <sup>n</sup>BuNH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>SH] [Cr <sub>7</sub>NiF<sub>8</sub>(O<sub>2</sub>C<sup>t</sup>Bu)<sub>16</sub>] (2) have been made and structurally characterized. They have been deposited from the liquid phase on Au(111) and the adsorbed molecules compared by means of scanning tunneling microscopy (STM) and X-ray photoemission spectroscopy (XPS). In both cases a two-dimensional distribution of individually accessible {Cr <sub>7</sub>Ni} heterometallic rings on the gold surface has been obtained, exploiting the direct grafting of sulfur-functionalized clusters. There is a competition between the chemisorption of the {Cr<sub>7</sub>Ni} clusters and a thiolic self-assembled monolayer (SAM) formed by free ligands. In 2, the presence of a single sulfur ligand should force the molecule to graft with the ring axis normal to the surface. The cluster stability in the STM images and the S-2p energy positions demonstrate, for both functionalizations, the strength of the grafting with the gold surface.</p>