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Issue 11, 2013
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Thermal conversion of [Fe(phen)3](SCN)2 thin films into the spin crossover complex Fe(phen)2(NCS)2

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Abstract

Heating the spin-crossover (SCO) complex FeII(phen)2(NCS)2 (phen = 1,10-phenanthroline) under high vacuum results in the formation of red films that have been identified as [FeII(phen)3](SCN)2 by IR, Raman, and UV-Vis spectroscopy. After annealing the red films to ∼140 °C under vacuum, purple (paramagnetic) films form and have been identified as Fe(phen)2(NCS)2 by SQUID magnetometry, X-ray photoelectron, Raman and IR spectroscopy. The Fe(phen)2(NCS)2 films exhibit a SCO transition at ∼180 K with a broadened transition temperature range between the high-spin and low-spin states (∼20 K) when compared to the bulk phase, which is ascribed to a broad distribution of molecular environments.

Graphical abstract: Thermal conversion of [Fe(phen)3](SCN)2 thin films into the spin crossover complex Fe(phen)2(NCS)2

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Publication details

The article was received on 16 Oct 2012, accepted on 09 Jan 2013 and first published on 06 Feb 2013


Article type: Paper
DOI: 10.1039/C3RA22534H
Citation: RSC Adv., 2013,3, 3745-3754

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    Thermal conversion of [Fe(phen)3](SCN)2 thin films into the spin crossover complex Fe(phen)2(NCS)2

    E. C. Ellingsworth, B. Turner and G. Szulczewski, RSC Adv., 2013, 3, 3745
    DOI: 10.1039/C3RA22534H

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