Capel Berdiell, I, Kulmaczewski, R, Shahid, N et al. (2 more authors) (2021) The Number and Shape of Lattice Solvent Molecules Controls Spin-Crossover in an Isomorphous Series of Crystalline Solvate Salts. Chemical Communications. ISSN 1359-7345
Abstract
Crystals of [FeL2][BF4]2·nMeCN (L = N-(2,6-di{pyrazol-1-yl}pyrid-4-yl)acetamide; n = 1 or 2) and [FeL2][ClO4]2·MeCN are isomorphous. When n = 1 the compounds exhibit an abrupt, hysteretic spin-transition below 200 K, but when n = 2 the material remains high-spin on cooling. [FeL2]X2·EtCN (X− = BF4− or ClO4−) are isomorphous with the MeCN solvates and undergo their spin-transition at almost the same temperature. However this now occurs in two-steps via a re-entrant mixed-spin intermediate phase, which correlates with crystallographic ordering of the bent propionitrile molecule.
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Institution: | The University of Leeds | ||||||||||
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemistry (Leeds) > Inorganic Chemistry (Leeds) The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) > Condensed Matter (Leeds) |
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Depositing User: | Symplectic Publications | ||||||||||
Date Deposited: | 07 Jun 2021 11:17 | ||||||||||
Last Modified: | 07 Jun 2021 11:17 | ||||||||||
Status: | Published online | ||||||||||
Publisher: | Royal Society of Chemistry | ||||||||||
Identification Number: | https://doi.org/10.1039/d1cc02624k |