Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/4672
Citations
Scopus Web of Science® Altmetric
?
?
Full metadata record
DC FieldValueLanguage
dc.contributor.authorAnderson, P.-
dc.contributor.authorAstley, T.-
dc.contributor.authorHitchman, M.-
dc.contributor.authorKeene, F.-
dc.contributor.authorMoubaraki, B.-
dc.contributor.authorMurray, K.-
dc.contributor.authorSkelton, B.-
dc.contributor.authorTiekink, E.-
dc.contributor.authorToftlund, H.-
dc.contributor.authorWhite, A.-
dc.date.issued2000-
dc.identifier.citationDalton Transactions: an international journal of inorganic chemistry, 2000; 2000(20):3505-3512-
dc.identifier.issn1477-9226-
dc.identifier.issn0300-9246-
dc.identifier.urihttp://hdl.handle.net/2440/4672-
dc.description.abstractA range of six-co-ordinate bis-tripodal iron(II) chelates, [FeL₂]²⁺, has been synthesized from iron-(II) or -(III) precursors where L = tris(pyrazol-1-yl)methane (pz)₃CH, tris(pyridyl-2-yl)methane (py)₃CH, bis(pyrazol-1-yl)(pyridin-2-yl)methane (pz)₂(py)CH and tris(pyridin-2-yl)phosphine oxide (py)₃P=O. Crystal structures have been determined for three compounds and in the (pz)₃CH case for two polymorphs (α and β) which were obtained in two different laboratories from iron(III) salts using different crystallisation solvents. The electronic properties of the [FeL₂]²⁺ series have been investigated by optical spectroscopic measurements. Low-spin d⁶ behaviour is indicated. Magnetic and Mössbauer effect measurements on [Fe{(pz)₃CH}₂]²⁺ show that a gradual spin crossover to the high-spin state occurs above 270 K, though this is far from developed at 350 K. Comparisons are made with the well studied boron ligand analogue [Fe{(pz)₃BH}₂], which displays similar crossover behaviour, and with bis(tridentate) ligand complexes containing the ligand 1,4,7-triazacyclononane.-
dc.description.statementofresponsibilityPeter A. Anderson, Timothy Astley, Michael A. Hitchman, F. Richard Keene, Boujemaa Moubaraki, Keith S. Murray, Brian W. Skelton, Edward R. T. Tiekink, Hans Toftlund and Allan H. White-
dc.language.isoen-
dc.publisherRoyal Soc Chemistry-
dc.rights© The Royal Society of Chemistry 2000-
dc.source.urihttp://dx.doi.org/10.1039/b003299i-
dc.titleStructures and spectra of bis-tripodal iron(II) chelates, [FeL₂]²⁺, where L = tris(pyrazol-1-yl)methane, tris(pyridin-2-yl)methane, bis(pyrazol-1-yl)(pyridin-2-yl)methane and tris(pyridin-2-yl)phosphine oxide. Magnetism and spin crossover in the (pz)₃CH case-
dc.title.alternativeStructures and spectra of bis-tripodal iron(II) chelates, [FeL(2)](2+), where L = tris(pyrazol-1-yl)methane, tris(pyridin-2-yl)methane, bis(pyrazol-1-yl)(pyridin-2-yl)methane and tris(pyridin-2-yl)phosphine oxide. Magnetism and spin crossover in the (pz)(3)CH case-
dc.typeJournal article-
dc.identifier.doi10.1039/b003299i-
pubs.publication-statusPublished-
dc.identifier.orcidKeene, F. [0000-0001-7759-0465]-
Appears in Collections:Aurora harvest 6
Chemistry publications

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.