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http://hdl.handle.net/2445/153779
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DC Field | Value | Language |
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dc.contributor.author | Maddock, L. C. H. | - |
dc.contributor.author | Borilović, Ivana | - |
dc.contributor.author | McIntyre, J. | - |
dc.contributor.author | Kennedy, Alan R. | - |
dc.contributor.author | Aromí Bedmar, Guillem | - |
dc.contributor.author | Hevia, Eva | - |
dc.date.accessioned | 2020-03-25T09:19:34Z | - |
dc.date.available | 2020-03-25T09:19:34Z | - |
dc.date.issued | 2017-04-01 | - |
dc.identifier.issn | 1477-9226 | - |
dc.identifier.uri | http://hdl.handle.net/2445/153779 | - |
dc.description.abstract | Using a transamination approach to access novel Fe(II) complexes, this study presents the synthesis, X-ray crystallographic and magnetic characterisation of a series of new iron complexes containing the multifunctional 2,2-dipyridylamide (DPA) ligand using iron bis(amide) [{Fe(HMDS)2}2] and sodium ferrate [{NaFe (HMDS)3}∞] (1) as precursors (HMDS = 1,1,1,3,3,3-hexamethyldisilazide). Reactions of DPA(H) with 1 show exceptionally good stoichiometric control, allowing access to heteroleptic [(THF)2·NaFe(DPA)(HMDS)2] (3) and homoleptic [{THF·NaFe(DPA)3}∞] (4) by using 1 and 3 equivalents of DPA(H) respectively. Linking this methodology and co-complexation, which is a more widely used approach to prepare heterobimetallic complexes, 3 can also be prepared by combining NaHMDS with heteroleptic [{Fe(DPA)(HMDS)}2] (2). In turn, 2 has been also synthesised and structurally defined by reacting [{Fe(HMDS)2}2] with two equivalents of DPA(H). Structural studies demonstrate the coordination flexibility of the N-bridged bis(heterocycle) ligand DPA, with 2 and 3 exhibiting discrete monomeric motifs, whereas 4 displays a much more intricate supramolecular structure, with one of its DPA ligands coordinating in an anti/anti fashion (as opposed to 2 and 3 where DPA shows a syn/syn conformation), which facilitates propagation of the structure via its central amido N. Magnetic studies confirmed the high-spin electron configuration of the iron(II) centres in all three compounds and revealed the existence of weak ferromagnetic interactions in dinuclear compound 2 ( J = 1.01 cm−1). | - |
dc.format.extent | 9 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Royal Society of Chemistry | - |
dc.relation.isformatof | Versió postprint del document publicat a: https://doi.org/10.1039/c7dt01319a | - |
dc.relation.ispartof | Dalton Transactions, 2017, vol. 46, num. 20, p. 6683-6691 | - |
dc.relation.uri | https://doi.org/10.1039/c7dt01319a | - |
dc.rights | (c) Maddock, L. C. H. et al., 2017 | - |
dc.source | Articles publicats en revistes (Química Inorgànica i Orgànica) | - |
dc.subject.classification | Magnesi | - |
dc.subject.classification | Química organometàl·lica | - |
dc.subject.other | Magnesium | - |
dc.subject.other | Organometallic chemistry | - |
dc.title | Synthetic, structural and magnetic implications of introducing 2,2'-dipyridylamide to sodium-ferrate complexes | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 671819 | - |
dc.date.updated | 2020-03-25T09:19:34Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Química Inorgànica i Orgànica) |
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File | Description | Size | Format | |
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671819.pdf | 769.85 kB | Adobe PDF | View/Open |
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