Elhaïk, J, Kilner, C and Halcrow, MA (2014) Insight into structure: function relationships in a molecular spin-crossover crystal, from a related weakly cooperative compound. European Journal of Inorganic Chemistry, 2014 (26). 4250 - 4253. ISSN 1434-1948
Abstract
The ClO4- salt of [FeL2]2+ {L = 2,6-bis(3-methylpyrazol-1-yl)pyridine} undergoes very gradual thermal spin-crossover centered just below room temperature. In contrast, the BF4- salt of the same complex exhibits an abrupt and structured spin-transition at lower temperature, with a complicated structural chemistry. The difference can be attributed to a much larger change in molecular structure between the spin states of the complex in the more cooperative BF4- salt, leading to an increased kinetic barrier for their interconversion. Consistent with that suggestion, the high-spin and low-spin structures of weakly cooperative [FeL2][ClO4]2 are almost superimposable.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2014, Wiley-VCH Verlag. Reproduced in accordance with the publisher's self-archiving policy. |
Keywords: | Spin-crossover; Crystal engineering; Materials; Molecular switches; Iron; N ligands |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 12 Feb 2015 10:56 |
Last Modified: | 30 Jun 2020 14:49 |
Published Version: | http://dx.doi.org/10.1002/ejic.201402623 |
Status: | Published |
Publisher: | Wiley-VCH Verlag |
Identification Number: | 10.1002/ejic.201402623 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:83008 |