scholarly journals Slow Magnetic Relaxation in Distorted Tetrahedral Dy(III) Aryloxide Complexes

2021 ◽  
Author(s):  
Vijay Parmar ◽  
Gemma Kate Gransbury ◽  
George F. S. Whitehead ◽  
David P Mills ◽  
Richard E. P. Winpenny
Keyword(s):  
Magnetic Anisotropy ◽  
Magnetic Relaxation ◽  
Easy Axis ◽  
Slow Magnetic Relaxation

Three distorted tetrahedral Dy(III) aryloxide complexes, [Na(THF)6][Dy(OArAd2tBu)2Cl2] (1) (OArAd2tBu = OC6H2Adamantyl2-2,6-tBu-4) and [Na(THF)6][Dy(OMes*)3X] (X = Cl, 2; BH4, 3), (OMes* = OC6H2tBu3-2,4,6) exhibit easy axis magnetic anisotropy and slow magnetic...

Slow magnetic relaxation in penta-coordinate cobalt(ii) field-induced single-ion magnets (SIMs) with easy-axis magnetic anisotropy

2020 ◽  
Vol 49 (33) ◽  
pp. 11715-11726 ◽  
Author(s):  
Salah S. Massoud ◽  
Zoe E. Perez ◽  
Jessica R. Courson ◽  
Roland C. Fischer ◽  
Franz A. Mautner ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Magnetic Relaxation ◽  
Easy Axis ◽  
Slow Relaxation ◽  
Slow Magnetic Relaxation

Two penta-coordinate [Co(Ln)(NCS)]ClO4 with substituted pyridyl based bispyrazolyl ligands have been structurally characterized. The complexes show an easy-axis magnetic anisotropy, large rhombicity and slow relaxation of magnetization.

A mononuclear Co(ii) complex formed from pyridinedimethanol with manifold slow relaxation channels

2017 ◽  
Vol 46 (33) ◽  
pp. 10950-10956 ◽  
Author(s):  
Dušan Valigura ◽  
Cyril Rajnák ◽  
Ján Moncol ◽  
Ján Titiš ◽  
Roman Boča
Keyword(s):  
Magnetic Anisotropy ◽  
Coordination Sphere ◽  
Magnetic Relaxation ◽  
Easy Axis ◽  
Slow Relaxation ◽  
Slow Magnetic Relaxation

A mononuclear hexacoordinate complex [Co(pydm)2](dnbz)2 formed from 2,6-pyridinedimethanol in the coordination sphere of Co(ii) and dinitrobenzoato anions exhibits magnetic anisotropy of an easy axis type and a field induced slow magnetic relaxation.

scholarly journals Slow Magnetic Relaxation in a One-Dimensional Coordination Polymer Constructed from Hepta-Coordinate Cobalt(II) Nodes

2020 ◽  
Vol 6 (4) ◽  
pp. 45
Author(s):  
Amit Kumar Mondal ◽  
Arpan Mondal ◽  
Sanjit Konar
Keyword(s):  
Magnetic Susceptibility ◽  
Coordination Polymer ◽  
Magnetic Anisotropy ◽  
Ab Initio Calculations ◽  
Direct Current ◽  
Magnetic Relaxation ◽  
Relaxation Processes ◽  
Ac Magnetic Susceptibility ◽  
One Dimensional ◽  
Slow Magnetic Relaxation

A one-dimensional coordination polymer was synthesized employing hepta-coordinate CoII as nodes and dicyanamide as linkers. Detailed direct current (DC) and alternating current (AC) magnetic susceptibility measurements reveal the presence of field-induced slow magnetic relaxation behavior of the magnetically isolated seven-coordinate CoII center with an easy-plane magnetic anisotropy. Detailed ab initio calculations were performed to understand the magnetic relaxation processes. To our knowledge, the reported complex represents the first example of slow magnetic relaxation in a one-dimensional coordination polymer constructed from hepta-coordinate CoII nodes and dicyanamide linkers.

scholarly journals Slow magnetic relaxation in a {CoIICoIII2} complex containing a high magnetic anisotropy trigonal bipyramidal CoII centre

2018 ◽  
Vol 47 (28) ◽  
pp. 9237-9240 ◽  
Author(s):  
Alexandra Collet ◽  
Gavin A. Craig ◽  
María José Heras Ojea ◽  
Lakshmi Bhaskaran ◽  
Claire Wilson ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Magnetic Relaxation ◽  
Easy Plane ◽  
Trigonal Bipyramidal ◽  
Slow Magnetic Relaxation

Incorporation of a trigonal bipyramidal CoII centre in {CoIICoIII2} leads to a large, easy-plane magnetic anisotropy and slow magnetic relaxation.

Coligand Effects on the Field-Induced Double Slow Magnetic Relaxation in Six-Coordinate Cobalt(II) Single-Ion Magnets (SIMs) with Positive Magnetic Anisotropy

2019 ◽  
Vol 58 (23) ◽  
pp. 15726-15740 ◽  
Author(s):  
Julia Vallejo ◽  
Marta Viciano-Chumillas ◽  
Francisco Lloret ◽  
Miguel Julve ◽  
Isabel Castro ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Magnetic Relaxation ◽  
Slow Magnetic Relaxation

Hybrid organic–inorganic connectivity of NdIII(pyrazine-N,N′-dioxide)[CoIII(CN)6]3− coordination chains for creating near-infrared emissive Nd(iii) showing field-induced slow magnetic relaxation

2018 ◽  
Vol 47 (24) ◽  
pp. 7870-7874 ◽  
Author(s):  
Szymon Chorazy ◽  
Tomasz Charytanowicz ◽  
Junhao Wang ◽  
Shin-ichi Ohkoshi ◽  
Barbara Sieklucka
Keyword(s):  
Magnetic Anisotropy ◽  
Magnetic Relaxation ◽  
Near Infrared ◽  
Nir Fluorescence ◽  
Slow Magnetic Relaxation

Organic pzdo and inorganic hexacyanidocobaltate(iii) support the formation of Nd(iii) complexes showing NIR fluorescence and magnetic anisotropy.

Slow magnetic relaxation in high-coordinate Co(ii) and Fe(ii) compounds bearing neutral tetradentate ligands

2021 ◽  
Author(s):  
Min Peng ◽  
Xiao-Fan Wu ◽  
Li-Xin Wang ◽  
Si-Huai Chen ◽  
Jing Xiang ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Magnetic Relaxation ◽  
Effective Spin ◽  
Uniaxial Magnetic Anisotropy ◽  
Tetradentate Ligands ◽  
Spin Reversal ◽  
Slow Magnetic Relaxation ◽  
D Value

7-coordinate Co(ii) compound has a very large positive D value (56.2 cm−1) with an effective spin-reversal barrier of Ueff = 100 K (71.4 cm−1). In contrast, the 8-coordinate Fe(ii) compound exhibits uniaxial magnetic anisotropy.

Two field-induced slow magnetic relaxation processes in a mononuclear Co(ii) complex with a distorted octahedral geometry

2016 ◽  
Vol 45 (22) ◽  
pp. 9279-9284 ◽  
Author(s):  
Jing Li ◽  
Yuan Han ◽  
Fan Cao ◽  
Rong-Min Wei ◽  
Yi-Quan Zhang ◽  
...  
Keyword(s):  
Single Molecule ◽  
Magnetic Relaxation ◽  
Easy Axis ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Relaxation Processes ◽  
Single Molecule Magnet ◽  
Distorted Octahedral ◽  
Slow Magnetic Relaxation

An easy-axis distorted octahedral mononuclear Co(ii) single-molecule magnet showing two filed-induced slow magnetic relaxation processes.

Octahedral Yb(iii) complexes embedded in [CoIII(CN)6]-bridged coordination chains: combining sensitized near-infrared fluorescence with slow magnetic relaxation

2017 ◽  
Vol 46 (40) ◽  
pp. 13668-13672 ◽  
Author(s):  
Szymon Chorazy ◽  
Michał Rams ◽  
Junhao Wang ◽  
Barbara Sieklucka ◽  
Shin-ichi Ohkoshi
Keyword(s):  
Magnetic Anisotropy ◽  
Magnetic Relaxation ◽  
Near Infrared ◽  
Infrared Range ◽  
Near Infrared Fluorescence ◽  
Slow Magnetic Relaxation ◽  
Near Infrared Range

The rare octahedral YbIII complexes formed in the bimetallic Yb–Co chains reveal significant magnetic anisotropy and photoluminescence activity in the near-infrared range.

Sign in / Sign up

Export Citation Format

Share Document