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Exploring the effects of synthetic and postsynthetic grinding on the properties of the spin crossover material [Fe(atrz)3](BF4)2 (atrz = 4-amino-4h-1,2,4-triazole)
DOI:
10.3390/magnetochemistry6030044
Authors:
Jed H.
Askew
(University of Kent)
,
David M.
Pickup
(University of Kent)
,
Gareth O.
Lloyd
(University of Lincoln)
,
Alan V.
Chadwick
(University of Kent)
,
Helena J.
Shepherd
(University of Kent)
Co-authored by industrial partner:
No
Type:
Journal Paper
Journal:
Magnetochemistry
, VOL 6
State:
Published (Approved)
Published:
September 2020
Diamond Proposal Number(s):
14239

Abstract: The effects of mechanochemical synthesis and postsynthetic grinding on the spin crossover material [Fe(atrz)3](BF4)2 was examined in detail using a combination of X-ray diffraction, magnetometry, EXAFS and TEM. Mechanochemical synthesis yielded a different polymorph (β-phase) to the solution synthesised sample (α-phase), with a lower temperature spin crossover. Milling duration did not significantly affect this temperature but did result in the production of smaller nanoparticles with a narrower size distribution. It is also possible to convert from α- to the β-phase via postsynthetic grinding.
Journal Keywords: spin crossover; mechanochemistry
Subject Areas:
Materials,
Physics,
Chemistry
Instruments:
B18-Core EXAFS
Documents:
magnetochemistry-06-00044.pdf