| People | Locations | Statistics |
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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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Brechin, Euan K.
University of Edinburgh
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (21/21 displayed)
- 2025Robust Y and Lu TrenSal catalysts for ring-opening polymerisation
- 2021Oxidation state variation in bis-calix[4]arene supported decametallic Mn clusterscitations
- 2020With complements of the ligands: an unusual S-shaped [Mn7]2 assembly from tethered calixarenescitations
- 2020Putting the squeeze on molecule-based magnets: exploiting pressure to develop magneto-structural correlations in paramagnetic coordination compoundscitations
- 2019Effect of pi-aromatic spacers on the magnetic properties and slow relaxation of double stranded metallacyclophanes with a Ln(III)-M-II-M-II-Ln(III) (Ln(III) = Gd-III, Dy-III, Y-III; M-II = Ni-II, Co-II) linear topologycitations
- 2019Molecular multifunctionality preservation upon surface deposition for a chiral single-molecule magnetcitations
- 2018Order in disorder:solution and solid-state studies of [MM] wheels (M = Cr, Al; M = Ni, Zn)citations
- 2018Order in disorder: solution and solid-state studies of [MIII 2 MII 5] wheels (MIII = Cr, Al; MII = Ni, Zn)citations
- 2018Order in disordercitations
- 2010MCD spectroscopy of hexanuclear Mn(III) salicylaldoxime single-molecule magnetscitations
- 2010Pressure-Induced Jahn-Teller Switching in a Mn12 nanomagnetcitations
- 2010High pressure studies of hydroxo-bridged Cu(II) dimerscitations
- 2010The effect of pressure on the crystal structure of [Gd(PhCOO) 3(DMF)]n to 3.7 GPa and the transition to a second phase at 5.0 GPacitations
- 2010The effect of pressure on the crystal structure of [Gd(PhCOO)(3)(DMF)](n) to 3.7 GPa and the transition to a second phase at 5.0 GPacitations
- 2009High pressure induced spin changes and magneto-structural correlations in hexametallic SMMscitations
- 2008Grafting derivatives of Mn-6 single-molecule magnets with high anisotropy energy barrier on Au(111) surfacecitations
- 2005Magnetic and theoretical characterization of a ferromagnetic Mn(III) dimercitations
- 2005Studies of an enneanuclear manganese single-molecule magnetcitations
- 2004Synthesis, structure, and magnetic properties of a [Mn22] wheel-like single-molecule magnetcitations
- 2004New routes to polymetallic clusters: Fluoride-based tri-, deca-, and hexaicosametallic MnIII clusters and their magnetic propertiescitations
- 2004New routes to polymetallic clusterscitations
Places of action
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article
High pressure induced spin changes and magneto-structural correlations in hexametallic SMMs
Abstract
<p>The first combined high pressure single-crystal X-ray diffraction and high pressure magnetism study of two polymetallic clusters is presented in an attempt to correlate the observed changes in structure with changes in magnetic response without the need for changes in external ligation. At 1.5 GPa the structure of [Mn6O2(Et-sao)(6)(O2CPh(Me)(2))(2)(EtOH)(6)] (1; Et-saoH(2) = 2-hydroxyphenylpropanone)-a single molecule magnet (SMM) with an effective anisotropy barrier of similar to 86 K-and of [Mn6O2(Et-sao)(6)-(O2C- naphth)(2)(EtOH)(4)(H2O)(2)](2) both undergo significant structural distortions of their metallic skeletons, which has a direct effect upon the observed magnetic response. The application of hydrostatic pressure on the two compounds ( up to 1.5 GPa) flattens the Mn-N-O-Mn torsion angles weakening the magnetic exchange between the metal centres. In both compounds one interaction switches from ferro- to antiferromagnetic, with the Jahn-Teller (JT) axes compressing ( on average) and re-aligning differently with respect to the plane of the three metal centres. High pressure dc chi T-M plots display a gradual decrease in the low temperature peak height and slope, simulations showing a decrease in vertical bar J vertical bar with increasing pressure with a second antiferromagnetic J value required to simulate the data. The "ground states" change from S = 12 to S = 11 for 1 and to S = 10 for 2. Magnetisation data for both 1 and 2 suggest a small decrease in vertical bar D vertical bar, while out-of-phase (chi(M)'') ac data show a large decrease in the effective energy barrier for magnetisation reversal.</p>