scholarly journals A Mononuclear Fe(III) Single Molecule Magnet with a 3/2↔5/2 Spin Crossover

2012 ◽  
Vol 134 (33) ◽  
pp. 13651-13661 ◽  
Author(s):  
Susanne Mossin ◽  
Ba L. Tran ◽  
Debashis Adhikari ◽  
Maren Pink ◽  
Frank W. Heinemann ◽  
...  
Keyword(s):  
Single Molecule ◽  
Spin Crossover ◽  
Single Molecule Magnet

scholarly journals Spin Crossover and Field‐Induced Single‐Molecule Magnet Behaviour in Co(II) Complexes Based on Terpyridine with Tetrathiafulvalene Analogues

2021 ◽  
Author(s):  
Siham Tiaouinine ◽  
Jessica Flores Gonzalez ◽  
Bertrand Lefeuvre ◽  
Thierry Guizouarn ◽  
Marie Cordier ◽  
...  
Keyword(s):  
Single Molecule ◽  
Spin Crossover ◽  
Single Molecule Magnet

A mononuclear five-coordinate Co(ii) single molecule magnet with a spin crossover between the S = 1/2 and 3/2 states

2018 ◽  
Vol 47 (46) ◽  
pp. 16596-16602 ◽  
Author(s):  
Lei Chen ◽  
Jingbo Song ◽  
Wen Zhao ◽  
Gangji Yi ◽  
Zhikuan Zhou ◽  
...  
Keyword(s):  
Hysteresis Loop ◽  
Single Molecule ◽  
Magnetic Relaxation ◽  
Spin Crossover ◽  
Spin Transition ◽  
Single Molecule Magnet ◽  
Pyramidal Geometry ◽  
Mononuclear Cobalt ◽  
Slow Magnetic Relaxation ◽  
Square Pyramidal Geometry

A mononuclear cobalt(ii) complex with square pyramidal geometry displays a spin transition with a small hysteresis loop and slow magnetic relaxation.

scholarly journals Electroswitching of the single-molecule magnet behaviour in an octahedral spin crossover cobalt(ii) complex with a redox-active pyridinediimine ligand

2020 ◽  
Vol 56 (81) ◽  
pp. 12242-12245
Author(s):  
Renato Rabelo ◽  
Luminita Toma ◽  
Nicolás Moliner ◽  
Miguel Julve ◽  
Francesc Lloret ◽  
...  
Keyword(s):  
Single Molecule ◽  
Spin Crossover ◽  
Single Molecule Magnet ◽  
Redox Active

A unique example of electroswitchable spin crossover molecular nanomagnet which proceeds through one-electron oxidation of the slow-relaxing paramagnetic low-spin CoII ion (SCo = 1/2, ON) to the diamagnetic low-spin CoIII ion (SCo = 0, OFF).

scholarly journals Switchable slow relaxation of magnetization in the native low temperature phase of a cooperative spin-crossover compound

2017 ◽  
Vol 8 (3) ◽  
pp. 2290-2295 ◽  
Author(s):  
A. Urtizberea ◽  
O. Roubeau
Keyword(s):  
Low Temperature ◽  
High Spin ◽  
Single Molecule ◽  
Spin Crossover ◽  
Slow Relaxation ◽  
Light Irradiation ◽  
Temperature Phase ◽  
Single Molecule Magnet ◽  
Trigonal Distortion ◽  
Low Temperature Phase

Field-induced slow relaxation of magnetization arising from local trigonal distortion at high-spin Fe(II) sites in [Fe(mtz)6](CF3SO3)2 is reversibly switched through light irradiation, the first example of native and switchable Single-Molecule-Magnet properties in a spin-crossover material.

Single molecule magnet behaviour in a square planar S = 1/2 Co(ii) complex and spin-state assignment of multiple relaxation modes

2020 ◽  
Vol 56 (49) ◽  
pp. 6711-6714
Author(s):  
Indrani Bhowmick ◽  
David W. Shaffer ◽  
Jenny Y. Yang ◽  
Matthew P. Shores
Keyword(s):  
Spin State ◽  
Single Molecule ◽  
Spin Crossover ◽  
Single Molecule Magnet ◽  
State Assignment ◽  
Square Planar ◽  
Relaxation Modes

First reports of a square planar S = 1/2 Co(ii) single molecule magnet, and spin state assignment to the multiple relaxation modes of a structurally related spin crossover Co(ii) complex.

scholarly journals Reversible on–off switching of both spin crossover and single-molecule magnet behaviours via a crystal-to-crystal transformation

2018 ◽  
Vol 9 (41) ◽  
pp. 7986-7991 ◽  
Author(s):  
Dong Shao ◽  
Le Shi ◽  
Lei Yin ◽  
Bao-Lin Wang ◽  
Zhen-Xing Wang ◽  
...  
Keyword(s):  
Single Crystal ◽  
Single Molecule ◽  
Spin Crossover ◽  
Single Molecule Magnet ◽  
Crystal Transformation

A molecule complex exhibiting reversible on–off switching between spin crossover and single-molecule magnet behaviours via a single-crystal-to-single-crystal transformation is reported.

scholarly journals Spin-Crossover and Field-Induced Single-Molecule Magnet Behaviour in Metal(II)-Dipyrazolylpyridine Complexes

2018 ◽  
Vol 2018 (40) ◽  
pp. 4452-4457 ◽  
Author(s):  
Haiet Douib ◽  
Louis Cornet ◽  
Jessica Flores Gonzalez ◽  
Elzbieta Trzop ◽  
Vincent Dorcet ◽  
...  
Keyword(s):  
Single Molecule ◽  
Spin Crossover ◽  
Single Molecule Magnet

Photoinduced Single-Molecule Magnet Properties in a Four-Coordinate Iron(II) Spin Crossover Complex

2013 ◽  
Vol 135 (51) ◽  
pp. 19083-19086 ◽  
Author(s):  
Corine Mathonière ◽  
Hsiu-Jung Lin ◽  
Diana Siretanu ◽  
Rodolphe Clérac ◽  
Jeremy M. Smith
Keyword(s):  
Single Molecule ◽  
Spin Crossover ◽  
Single Molecule Magnet

Exchange-Biasing in a Dinuclear Dysprosium(III) Single-Molecule Magnet with a Large Energy Barrier for Magnetization Reversal

2019 ◽  
Author(s):  
Tian Han ◽  
Marcus J. Giansiracusa ◽  
Zi-Han Li ◽  
You-Song Ding ◽  
Nicholas F. Chilton ◽  
...  
Keyword(s):  
Single Molecule ◽  
Magnetization Reversal ◽  
Energy Barrier ◽  
Magnetic Hysteresis ◽  
Large Energy ◽  
Magnetic Studies ◽  
Bridging Ligands ◽  
Single Molecule Magnet ◽  
Exchange Biasing

A dichlorido-bridged dinuclear dysprosium(III) single-molecule magnet [Dy<sub>2</sub>L<sub>2</sub>(<i>µ</i>-Cl)<sub>2</sub>(THF)<sub>2</sub>] has been made using a diamine-bis(phenolate) ligand, H<sub>2</sub>L. Magnetic studies show an energy barrier for magnetization reversal (<i>U</i><sub>eff</sub>) around 1000 K. Exchange-biasing effect is clearly seen in magnetic hysteresis with steps up to 4 K. <i>Ab</i> initio calculations exclude the possibility of pure dipolar origin of this effect leading to the conclusion that super-exchange <i>via</i> the chloride bridging ligands is important.

Correlating Blocking Temperatures in Single Molecule Magnets with Raman Relaxation

2018 ◽  
Author(s):  
Marcus J. Giansiracusa ◽  
Andreas Kostopoulos ◽  
George F. S. Whitehead ◽  
David Collison ◽  
Floriana Tuna ◽  
...  
Keyword(s):  
Relaxation Time ◽  
Single Molecule ◽  
Energy Barrier ◽  
Thermal Relaxation ◽  
Relaxation Mechanism ◽  
Blocking Temperature ◽  
Single Molecule Magnets ◽  
Single Molecule Magnet ◽  
Key Parameter

We report a six coordinate DyIII single-molecule magnet<br>(SMM) with an energy barrier of 1110 K for thermal relaxation of<br>magnetization. The sample shows no retention of magnetization<br>even at 2 K and this led us to find a good correlation between the<br>blocking temperature and the Raman relaxation regime for SMMs.<br>The key parameter is the relaxation time (𝜏<sub>switch</sub>) at the point where<br>the Raman relaxation mechanism becomes more important than<br>Orbach.

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