Spin canting, metamagnetism, and single-chain magnetic behaviour in a cyano-bridged homospin iron(ii) compound

Abstract

Spin canting, antiferromagnetic ordering, metamagnetism and single-chain magnetism were verified in a cyano-bridged Fe(II) compound synthesized from the pentagonal bipyramidal Fe(II) starting material in the presence of excessive BF4(-) anions.

Structural and magnetic tuning from a field-induced single-ion magnet to a single-chain magnet by anions

“…5a). 6 The intrachain magnetic interaction is almost the same as that for the [Fe(L N 5 )(CN)] [BF 4 ], consistent with their similar 1D structures. S8, ESI †).…”

“…14 The absorption corrections were applied with SADABS. 6 Although the difference between the MQ − and the ABSA − anions is very minor (Fig. 16 All the non-hydrogen atoms were refined anisotropically.…”

“…[4][5][6][7][8][9][10] For the construction of SCMs, the magnetic anisotropy of the spin unit, the intrachain exchange interaction and the interchain interaction are the three most important factors. 1 Among them, SCMs have received great attention ever since their first observation in a Co II -nitroxide radical chain in 2001.…”

Magnetic anisotropy in two- to eight-coordinated transition–metal complexes: Recent developments in molecular magnetism

“…Moreover, as discussed earlier, the hepta-coordinated PBP geometry with D 5h symmetry induces magnetic anisotropy with significantly higher ZFS parameters (D) for Co II , Ni II , and M a n u s c r i p t Edited June 25 M a n u s c r i p t Edited June 25 backbone of the 1D chain compound in a zig-zag manner (Fig. 46) [280]. Although antiferromagnetic exchange coupling was mediated by the CN bridge between neighboring Fe centers, the magnetization was not fully compensated for due to spin canting (canting angle of 7°).…”

“…Selected magnetic parameters, i.e., magnetic exchange interactions (J) between neighboring metal centers, effective energy barrier (U eff ), pre-exponential relaxation time ( 0 ), and hysteresis characteristics of the large spin ground state complexes, obtained via the association of anisotropic building units. 1.910 -9 0 2200 - [280] A c c e p t e d M a n u s c r i p t …”