Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 139, Issue 46, Pages 16474-16477Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.7b09699
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Funding
- National Science Foundation [CHE-1464232, NSF/DMR-531283]
- Division of Chemistry (CHE), National Science Foundation [NSF/CHE-1346572]
- Division of Materials Research (DMR), National Science Foundation [NSF/CHE-1346572]
- U.S. DOE [DE-AC02-06CH11357]
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [1346572] Funding Source: National Science Foundation
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Magneto-structural correlation studies of mononuclear intermediate S = 3/2 Fe(III) complexes, (PMe3)(2)FeCL3 (1) and (PMe2Ph)(2)FeCl3 (2), demonstrate the influence of local symmetry on magnetic anisotropy. Symmetric compound 1 is characterized by a zero-field splitting (ZFS) parameter of D = -50(2) cm(-1), leading to the observation of slow magnetic relaxation with an energy barrier of 81 cm(-1) along with magnetic hysteresis up to 4 K, whereas symmetrically perturbed compound 2 displays a much reduced ZFS parameter of D = -17(1) cm(-1) and energy barrier of Ueff = 46 cm(-1).
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