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Mixed spin-state [HS-LS] pairs in a dinuclear spin-transition complex: confirmation by variable-temperature 57Fe Mössbauer spectroscopy

Mixed spin-state [HS-LS] pairs in a dinuclear spin-transition complex: confirmation by variable-temperature 57Fe Mössbauer spectroscopy
Mixed spin-state [HS-LS] pairs in a dinuclear spin-transition complex: confirmation by variable-temperature 57Fe Mössbauer spectroscopy
Exquisite sensitivity of Mössbauer spectroscopy for tiny local molecular distortion is demonstrated in [FeII2(pmat)2](BF4)4?DMF: high-spin (HS) iron(II) in [HS-HS] and in [LS-HS] (low-spin–high-spin) pairs is clearly distinguished (see picture) for the first time without the need to apply a magnetic field. This dinuclear complex clearly shows that spin crossover via a [LS-HS] species is promoted by the use of a highly constrained bridging ligand (the bis-terdentate pmat).
bridging ligands, iron, magnetic properties, moessbauer spectroscopy, spin crossover
1433-7851
2997-2999
Grunert, C. Matthias
92ad8456-cbf6-4e6a-b84f-d16b7b726f4c
Reiman, Sergey
f043713f-3a4a-492a-90c6-f8da3f6197a5
Spiering, Hartmut
c27c817c-97e6-45f4-8e00-485a6930852f
Kitchen, Jonathan A.
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Brooker, Sally
2ee9681a-3ff7-41be-88c5-681f66b953ef
Gütlich, Philipp
e93db621-1175-46fe-80b0-d7791be2b353
Grunert, C. Matthias
92ad8456-cbf6-4e6a-b84f-d16b7b726f4c
Reiman, Sergey
f043713f-3a4a-492a-90c6-f8da3f6197a5
Spiering, Hartmut
c27c817c-97e6-45f4-8e00-485a6930852f
Kitchen, Jonathan A.
3999f5cb-d53e-4c51-b750-627bd2a1b9b6
Brooker, Sally
2ee9681a-3ff7-41be-88c5-681f66b953ef
Gütlich, Philipp
e93db621-1175-46fe-80b0-d7791be2b353

Grunert, C. Matthias, Reiman, Sergey, Spiering, Hartmut, Kitchen, Jonathan A., Brooker, Sally and Gütlich, Philipp (2008) Mixed spin-state [HS-LS] pairs in a dinuclear spin-transition complex: confirmation by variable-temperature 57Fe Mössbauer spectroscopy. Angewandte Chemie International Edition, 47 (16), 2997-2999. (doi:10.1002/anie.200705778). (PMID:18357596)

Record type: Article

Abstract

Exquisite sensitivity of Mössbauer spectroscopy for tiny local molecular distortion is demonstrated in [FeII2(pmat)2](BF4)4?DMF: high-spin (HS) iron(II) in [HS-HS] and in [LS-HS] (low-spin–high-spin) pairs is clearly distinguished (see picture) for the first time without the need to apply a magnetic field. This dinuclear complex clearly shows that spin crossover via a [LS-HS] species is promoted by the use of a highly constrained bridging ligand (the bis-terdentate pmat).

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e-pub ahead of print date: 20 March 2008
Published date: 7 April 2008
Keywords: bridging ligands, iron, magnetic properties, moessbauer spectroscopy, spin crossover
Organisations: Chemistry

Identifiers

Local EPrints ID: 343595
URI: http://eprints.soton.ac.uk/id/eprint/343595
ISSN: 1433-7851
PURE UUID: da6e0082-c5b1-48dc-9ae8-4e7bccfaf9cd
ORCID for Jonathan A. Kitchen: ORCID iD orcid.org/0000-0002-7139-5666

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Date deposited: 09 Oct 2012 09:21
Last modified: 16 Dec 2019 20:36

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