Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/117452
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Campo DC | Valor | Lengua/Idioma |
---|---|---|
dc.contributor.author | Craig, G. A. | - |
dc.contributor.author | Sánchez Costa, J. | - |
dc.contributor.author | Roubeau, Olivier | - |
dc.contributor.author | Teat, Simon J. | - |
dc.contributor.author | Aromí, Guillem | - |
dc.date.accessioned | 2015-07-02T07:10:35Z | - |
dc.date.available | 2015-07-02T07:10:35Z | - |
dc.date.issued | 2013 | - |
dc.identifier | doi: 10.1002/ejic.201201041 | - |
dc.identifier | issn: 1434-1948 | - |
dc.identifier | e-issn: 1099-0682 | - |
dc.identifier.citation | European Journal of Inorganic Chemistry (5-6): 745-752 (2013) | - |
dc.identifier.uri | http://hdl.handle.net/10261/117452 | - |
dc.description.abstract | The polypyrazolyl ligand H4L, a functionalised derivative of 3-bpp [bpp = bis(pyrazol-3-yl)pyridine], has been used to synthesise an FeII spin-crossover (SCO) system [Fe(H4L)2]- (ClO 4)2·2THF·H2O (1). A subsequent magnetic and structural study revealed that the compound undergoes an incomplete transition with a small hysteresis loop of 8 K and a large residual high spin (HS) fraction. This is consistent with single crystal diffraction results at 250 and 90 K, which show a slight modification of the crystal packing and Fe-N bond lengths. Ageing of the samples leads to more cooperative SCO behaviour, as evidenced by a concomitant increase in the width of the hysteresis loops (reaching up to 20 K) and a decrease in the residual HS fraction at low temperatures. These increases in the bistable domain of the sample, corroborated by measuring the changes in heat capacity through differential scanning calorimetry, are accompanied by a loss of crystallinity, which is attributed to solvent loss and the absorption of atmospheric water. Grinding an aged sample yields a narrower hysteresis loop at higher temperatures. Compound 1 was compared with two previously observed systems of the same family that exhibit different SCO behaviour, [Fe(H4L)2]- (ClO 4)2·H2O·2(CH3) 2CO (2) and [Fe(H4L)2](ClO4) 2·2C3H7OH (3), by using Hirshfeld surface analysis to have a global view of the intermolecular interactions as enhanced by the functional groups of H4L. © 2013 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. | - |
dc.description.sponsorship | G. A. thanks the Generalitat de Catalunya for the ICREA Academia 2008 prize and the European Research Council (ERC) for a Starting Grant (258060 FuncMolQIP). The authors thank the Spanish Ministerio de Ciencia e Innovación (MCI) for funding through grants CTQ2009-06959 (to J. S. C., G. A. C. and G. A.) and MAT2011-24284 (to O. R.). | - |
dc.publisher | Wiley-VCH | - |
dc.rights | closedAccess | - |
dc.subject | Intermolecular interactions | - |
dc.subject | Hirshfeld surfaces | - |
dc.subject | Magnetic properties | - |
dc.subject | Iron | - |
dc.subject | Spin crossover | - |
dc.title | An FeIII spin-crossover complex becomes increasingly cooperative with ageing | - |
dc.type | artículo | - |
dc.identifier.doi | 10.1002/ejic.201201041 | - |
dc.date.updated | 2015-07-02T07:10:35Z | - |
dc.description.version | Peer Reviewed | - |
dc.language.rfc3066 | eng | - |
dc.contributor.funder | Ministerio de Ciencia e Innovación (España) | - |
dc.contributor.funder | European Research Council | - |
dc.contributor.funder | Generalitat de Catalunya | - |
dc.relation.csic | Sí | - |
dc.identifier.funder | http://dx.doi.org/10.13039/501100004837 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100000781 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100002809 | es_ES |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.fulltext | No Fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | none | - |
item.openairetype | artículo | - |
Aparece en las colecciones: | (ICMA) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
accesoRestringido.pdf | 15,38 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
14
checked on 18-abr-2024
WEB OF SCIENCETM
Citations
14
checked on 20-feb-2024
Page view(s)
225
checked on 23-abr-2024
Download(s)
36
checked on 23-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.