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Magnetic Behaviour of Mn(12)-Stearate Single-Molecule Magnets Immobilized on the Surface of 300 nm Spherical Silica Nanoparticles

The magnetic behaviour of Mn [Formula: see text]-stearate single-molecule magnets (SMMs) ([[Formula: see text] [Formula: see text]) on the surface of 300 nm spherical silica nanoparticles were investigated. The SMMs were bonded at the silica surface with the assumed number of anchoring points, which...

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Autores principales: Laskowska, Magdalena, Pastukh, Oleksandr, Konieczny, Piotr, Dulski, Mateusz, Zalsiński, Marcin, Laskowski, Lukasz
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7321606/
https://www.ncbi.nlm.nih.gov/pubmed/32526883
http://dx.doi.org/10.3390/ma13112624
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author Laskowska, Magdalena
Pastukh, Oleksandr
Konieczny, Piotr
Dulski, Mateusz
Zalsiński, Marcin
Laskowski, Lukasz
author_facet Laskowska, Magdalena
Pastukh, Oleksandr
Konieczny, Piotr
Dulski, Mateusz
Zalsiński, Marcin
Laskowski, Lukasz
author_sort Laskowska, Magdalena
collection PubMed
description The magnetic behaviour of Mn [Formula: see text]-stearate single-molecule magnets (SMMs) ([[Formula: see text] [Formula: see text]) on the surface of 300 nm spherical silica nanoparticles were investigated. The SMMs were bonded at the silica surface with the assumed number of anchoring points, which influenced on their degree of freedom and distribution. In order to check the properties of Mn [Formula: see text]-stearate molecules separated on the silica surface, and check their interactions, the samples containing four different concentration of spacers per single anchoring unit and variously bonded Mn [Formula: see text]-stearate particles were prepared. The materials have been examined using Raman spectroscopy, transmission electron microscopy, and SQUID magnetometry. The results of magnetic measurements showed a correlation between the way of single-molecule magnets immobilization onto the silica spheres and the magnetic properties of the obtained hybrid materials.
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spelling pubmed-73216062020-07-20 Magnetic Behaviour of Mn(12)-Stearate Single-Molecule Magnets Immobilized on the Surface of 300 nm Spherical Silica Nanoparticles Laskowska, Magdalena Pastukh, Oleksandr Konieczny, Piotr Dulski, Mateusz Zalsiński, Marcin Laskowski, Lukasz Materials (Basel) Article The magnetic behaviour of Mn [Formula: see text]-stearate single-molecule magnets (SMMs) ([[Formula: see text] [Formula: see text]) on the surface of 300 nm spherical silica nanoparticles were investigated. The SMMs were bonded at the silica surface with the assumed number of anchoring points, which influenced on their degree of freedom and distribution. In order to check the properties of Mn [Formula: see text]-stearate molecules separated on the silica surface, and check their interactions, the samples containing four different concentration of spacers per single anchoring unit and variously bonded Mn [Formula: see text]-stearate particles were prepared. The materials have been examined using Raman spectroscopy, transmission electron microscopy, and SQUID magnetometry. The results of magnetic measurements showed a correlation between the way of single-molecule magnets immobilization onto the silica spheres and the magnetic properties of the obtained hybrid materials. MDPI 2020-06-09 /pmc/articles/PMC7321606/ /pubmed/32526883 http://dx.doi.org/10.3390/ma13112624 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Laskowska, Magdalena
Pastukh, Oleksandr
Konieczny, Piotr
Dulski, Mateusz
Zalsiński, Marcin
Laskowski, Lukasz
Magnetic Behaviour of Mn(12)-Stearate Single-Molecule Magnets Immobilized on the Surface of 300 nm Spherical Silica Nanoparticles
title Magnetic Behaviour of Mn(12)-Stearate Single-Molecule Magnets Immobilized on the Surface of 300 nm Spherical Silica Nanoparticles
title_full Magnetic Behaviour of Mn(12)-Stearate Single-Molecule Magnets Immobilized on the Surface of 300 nm Spherical Silica Nanoparticles
title_fullStr Magnetic Behaviour of Mn(12)-Stearate Single-Molecule Magnets Immobilized on the Surface of 300 nm Spherical Silica Nanoparticles
title_full_unstemmed Magnetic Behaviour of Mn(12)-Stearate Single-Molecule Magnets Immobilized on the Surface of 300 nm Spherical Silica Nanoparticles
title_short Magnetic Behaviour of Mn(12)-Stearate Single-Molecule Magnets Immobilized on the Surface of 300 nm Spherical Silica Nanoparticles
title_sort magnetic behaviour of mn(12)-stearate single-molecule magnets immobilized on the surface of 300 nm spherical silica nanoparticles
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7321606/
https://www.ncbi.nlm.nih.gov/pubmed/32526883
http://dx.doi.org/10.3390/ma13112624
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