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https://hdl.handle.net/10316/108512
Título: | Dynamic spin interchange in a tridentate Fe(iii) Schiff-base compound | Autor: | Vicente, Ana I. Joseph, Abhinav Ferreira, Liliana P. Carvalho, Maria de Deus Rodrigues, Vítor H. N. Duttine, Mathieu Diogo, Hermínio P. Minas da Piedade, Manuel E. Calhorda, Maria José Martinho, Paulo N. |
Data: | 1-Jul-2016 | Editora: | Royal Society of Chemistry | Projeto: | UID/MULTI/00612/2013 UID/MULTI/04046/2013 SFRH/BD/90386/2012 SFRH/BPD/73345/2010 COST action CM1305 |
Título da revista, periódico, livro ou evento: | Chemical Science | Volume: | 7 | Número: | 7 | Resumo: | The thermosalient effect is still a rare and poorly understood phenomenon, where crystals suddenly jump, bend, twist or explode upon undergoing a thermally activated phase transition. The synthesis and characterisation of the new spin transition Fe(iii) compound [Fe(5-Br-salEen)2][ClO4] (salEen = N-ethyl-N-(2-aminoethyl)salicylaldiminate) is described and its thermosalient behaviour reported. It is the first example of a thermosalient effect with a spin transition and magnetic, calorimetric, diffraction, microscopy and computational studies are used to characterise these effects. Both thermosalient effect and spin transition occur around 320 K upon heating and are accompanied by an anisotropic unit cell change with conservation of crystal symmetry that causes a large enough stress of the crystal lattice to induce crystal explosion. This stress can ultimately be traced back to a diffusionless and distortive structural perturbation resulting in a coupled spin transition-thermosalient effect. | URI: | https://hdl.handle.net/10316/108512 | ISSN: | 2041-6520 | DOI: | 10.1039/c5sc04577k | Direitos: | openAccess |
Aparece nas coleções: | FCTUC Física - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Dynamic-spin-interchange-in-a-tridentate-FeIII-Schiffbase-compoundChemical-Science.pdf | 1.87 MB | Adobe PDF | Ver/Abrir |
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