Journal
NEW JOURNAL OF CHEMISTRY
Volume 42, Issue 22, Pages 18028-18037Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8nj03627f
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Funding
- EPSRC [EP/P505186/1]
- Durham University
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The spin crossover behaviour of [Fe(abpt)(2)(NCSe)(2)] (abpt = 4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole) polymorph A has been examined using single crystal X-ray diffraction and variable temperature UV-Vis transmission spectroscopy. The crystal structure of A is reported at sixteen temperatures between 30 and 375 K, all of which are in the monoclinic space group P2(1)/n with Z' = 0.5. Changes in the crystallographic cell parameters, bond lengths, distortion parameters and intra and intermolecular interactions between 375 K and 30 K are discussed. Continuous irradiation with a 670 nm, 5 mW CW laser at 30 K enabled a light induced excited spin state trapping (LIESST) metastable high spin structure, HS*, to be obtained.
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