Magnetic behaviour of polyfluoroacridine-based organic molecular materials
| Autor: | Luciano Miozzo, M. R. Cimberle, Silvia Rizzato, Paolo Campiglio, Antonio Papagni, C. Fanciulli, Fabio Canepa, Adele Sassella, Marcello Campione, Carmen Canevali, Massimo Moret |
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| Přispěvatelé: | Campiglio, P, Campione, M, Canepa, F, Canevali, C, Cimberle, M, Fanciulli, C, Miozzo, L, Moret, M, Papagni, A, Rizzato, S, Sassella, A |
| Rok vydání: | 2010 |
| Předmět: |
Diffraction
Materiali molecolari organici Materials science Solid-state physics molecular organic materials magnetic properties Intermolecular force Chemical modification 75.50.-y 81.05.Fb 33.15.Kr organic molecular material molecular radical magnetisation Condensed Matter Physics Electronic Optical and Magnetic Materials law.invention Paramagnetism Magnetization FIS/01 - FISICA SPERIMENTALE Nuclear magnetic resonance law Physical chemistry Electron paramagnetic resonance Spin (physics) magnetismo |
| Zdroj: | The European physical journal. B, Condensed matter physics 73 (2009): 495–501. info:cnr-pdr/source/autori:P. Campiglio; M. Campione; F. Canepa; C. Canevali; M.R. Cimberle; C. Fanciulli; L. Miozzo; M. Moret; A. Papagni; S. Rizzato; A. Sassella/titolo:Magnetic behaviour of polyfluoroacridine-based organic molecular materials/doi:/rivista:The European physical journal. B, Condensed matter physics (Print)/anno:2009/pagina_da:495/pagina_a:501/intervallo_pagine:495–501/volume:73 European journal of physics 73 (2010): 495–501. info:cnr-pdr/source/autori:Campiglio P.; Campione M.; Canepa F.; Canevali C.; Cimberle M. R.; Fanciulli C.; Miozzo L.; Moret M.; Papagni A.; Rizzato S.; Sassella A./titolo:Magnetic behaviour of polyfluoroacridine-based organic molecular materials/doi:/rivista:European journal of physics (Print)/anno:2010/pagina_da:495/pagina_a:501/intervallo_pagine:495–501/volume:73 |
| ISSN: | 1434-6036 1434-6028 |
| DOI: | 10.1140/epjb/e2010-00029-2 |
| Popis: | The solid state magnetic properties of two new molecular organic materials based on polyfluoro- acridines functionalised with the 2,2,6,6-tetramethyl piperidine-1-oxyl radical (TEMPO) have been ana- lyzed. After a first characterisation of the two materials by electron paramagnetic resonance and by X-ray diffraction, magnetisation measurements were performed from room temperature down to 2 K and the paramagnetic behaviour due to the unpaired spin on the radical TEMPO observed. Both compounds show some ferro-magnetic interactions down to 40 K, while at lower temperatures an antiferro-magnetic contribution switches on, possibly related to the reduction of intermolecular distances. |
| Databáze: | OpenAIRE |
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