Electromagnetic radiation as a spin crossover stimulus

2015 ◽  
Vol 87 (3) ◽  
pp. 293-300 ◽  
Author(s):  
Patrick Homenya ◽  
Lars Heyer ◽  
Franz Renz
Keyword(s):  
Electromagnetic Radiation ◽  
Spin Crossover ◽  
Spin Transition ◽  
Optically Induced

AbstractOver the course of time, several effects which are associated with the phenomenon of an optically-induced spin transition were found. With this contribution, we would like to give the reader a brief overview of several photonically-induced SCO effects by outlining their relationship to one another.

Abrupt spin crossover in iron(iii) complexes with aromatic anions

2019 ◽  
Vol 48 (41) ◽  
pp. 15515-15520 ◽  
Author(s):  
Sharon E. Lazaro ◽  
Adil Alkaş ◽  
Seok J. Lee ◽  
Shane G. Telfer ◽  
Keith S. Murray ◽  
...  
Keyword(s):  
Transition Temperature ◽  
Spin Crossover ◽  
Spin Transition ◽  
Halogen Bonds ◽  
Aromatic Anions

Two iron(iii) complexes, [Fe(qsal-X)2]OTs·nH2O, are found to exhibit abrupt spin crossover with the spin transition temperature substituent dependent, and X⋯O halogen bonds linking the spin centres.

scholarly journals Electrical read-out of light-induced spin transition in thin film spin crossover/graphene heterostructures

2021 ◽  
Author(s):  
Nikita Konstantinov ◽  
Arthur Tauzin ◽  
Ulrich Nguetchuissi Noumbé ◽  
Diana Dragoe ◽  
Bohdan Kundys ◽  
...  
Keyword(s):  
Thin Film ◽  
Spin Crossover ◽  
Spin Transition ◽  
Switching Device ◽  
Electronic Switching ◽  
Spin Transitions

An opto-electronic switching device made from an evaporated spin crossover thin film over a graphene sensor is presented. The electrical transduction of both temperature and light-induced reversible spin transitions are demonstrated.

Spin-crossover in a trans-[FeL2(NCS)2] family (L = triaryltriazole): remote substituent effects on spin transition modes and temperature

2013 ◽  
Vol 42 (28) ◽  
pp. 10144 ◽  
Author(s):  
Guo-Ping Shen ◽  
Li Qi ◽  
Lei Wang ◽  
Yan Xu ◽  
Jing-Jing Jiang ◽  
...  
Keyword(s):  
Spin Crossover ◽  
Spin Transition ◽  
Substituent Effects ◽  
Transition Modes ◽  
Remote Substituent

scholarly journals Thermal and near-infrared light induced spin crossover in a mononuclear iron(ii) complex with a tetrathiafulvalene-fused dipyridophenazine ligand

2016 ◽  
Vol 45 (28) ◽  
pp. 11267-11271 ◽  
Author(s):  
F. Pointillart ◽  
X. Liu ◽  
M. Kepenekian ◽  
B. Le Guennic ◽  
S. Golhen ◽  
...  
Keyword(s):  
Spin Crossover ◽  
Near Infrared ◽  
Spin Transition ◽  
Infrared Light ◽  
Near Infrared Light ◽  
Mononuclear Iron

A thermal and photo-induced spin transition in a tetrathiafulvalene-based Fe(ii) complex.

Polymorphism-Dependent Spin-Crossover: Hysteretic Two-Step Spin Transition with an Ordered [HS–HS–LS] Intermediate Phase

2015 ◽  
Vol 54 (11) ◽  
pp. 5145-5147 ◽  
Author(s):  
Jie Luan ◽  
Jian Zhou ◽  
Zhan Liu ◽  
Bowen Zhu ◽  
Huisi Wang ◽  
...  
Keyword(s):  
Spin Crossover ◽  
Intermediate Phase ◽  
Spin Transition

scholarly journals Quantum Chemical Modeling of Pressure-Induced Spin Crossover in Octahedral Metal-Ligand Complexes

2019 ◽  
Author(s):  
Tim Stauch ◽  
Romit Chakraborty ◽  
Martin Head-Gordon
Keyword(s):  
Carbon Monoxide ◽  
Molecular Electronics ◽  
Spin Crossover ◽  
Strong Field ◽  
Spin Transition ◽  
Nuclear Forces ◽  
Chemical Modeling ◽  
Metal Centers ◽  
State Switching ◽  
External Stimuli

Spin state switching on external stimuli is a phenomenon with wide applicability ranging from molecular electronics to gas activation in nanoporous frameworks. Here we model spin crossover as a function of hydrostatic pressure in octahedrally coordinated transition metal centers by applying a field of effective nuclear forces that compress the molecule towards its centroid. For spin crossover in first-row transition metals coordinated by hydrogen, nitrogen, and carbon monoxide, we find the pressure required for spin transition to be a function of ligand position in the spectrochemical sequence. While pressures on the order of 1 GPa are required to flip spins in homogeneously ligated octahedral sites, we demonstrate a five-fold decrease in spin transition pressure for the archetypal strong field ligand carbon monoxide in octahedrally coordinated Fe<sup>2+</sup> in [Fe(II)(NH<sub>3</sub>)<sub>5</sub>CO]<sup>2+</sup>.

One Shot Laser Pulse Induced Reversible Spin Transition in the Spin-Crossover Complex [Fe(C4H4N2){Pt(CN)4}] at Room Temperature

2005 ◽  
Vol 117 (26) ◽  
pp. 4137-4141 ◽  
Author(s):  
Sébastien Bonhommeau ◽  
Gábor Molnár ◽  
Ana Galet ◽  
Antoine Zwick ◽  
José-Antonio Real ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Room Temperature ◽  
Spin Crossover ◽  
Spin Transition

Optical Microscopy Imaging of the Thermally-Induced Spin Transition and Isothermal Multi-stepped Relaxation in a Low-Spin Stabilized Spin-Crossover Material

2021 ◽  
Author(s):  
Pradip Chakraborty ◽  
Mouhamadou Sy ◽  
Houcem Fourati ◽  
Maria Teresa Delgado Pérez ◽  
Mousumi Dutta ◽  
...  
Keyword(s):  
Optical Microscopy ◽  
High Spin ◽  
Spin Relaxation ◽  
Spin Crossover ◽  
Spin Transition ◽  
Host Lattice ◽  
Microscopy Imaging ◽  
Thermally Induced ◽  
Optical Microscopy Imaging

The thermal spin transition and the photo-induced high-spin → low-spin relaxation of the prototypical [Fe(ptz)6](BF4)2 spin-crossover compound (ptz = 1-propyltetrazole) diluted in the isostructural ruthenium host lattice [Ru(ptz)6](BF4)2, which stabilizes...

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