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Download fileField-Induced Slow Magnetic Relaxation of a Six-Coordinate Mononuclear Manganese(II) and Cobalt(II) Oxamate Complexes
journal contribution
posted on 2020-09-08, 14:20 authored by Tamyris T. da Cunha, Vitor M. M. Barbosa, Willian X. C. Oliveira, Emerson F. Pedroso, Diana M. A. García, Wallace C. Nunes, Cynthia L. M. PereiraTwo
air-stable, isostructural, mononuclear six-coordinate manganese(II)
and cobalt(II) oxamate complexes, [M(4-HOpa)2(H2O)2] [4-HOpa = N-4-hydroxyphenyloxamate; M= Mn2+ (1) or Co2+ (2)], exhibit field-induced slow magnetic relaxation. A bottleneck
process is observed throughout the temperature range of 2–20
K for 1, while for 2, it dominates only
at low temperatures (2–4 K). Additionally, the Raman process
[n = 6.9(2)] is responsible for an increase in the
relaxation time at higher temperatures to 2.
