scholarly journals Spin state switching of metal complexes by visible light or hard X-rays

2016 ◽  
Vol 45 (36) ◽  
pp. 14008-14018 ◽  
Author(s):  
Daniel Unruh ◽  
Patrick Homenya ◽  
Manish Kumar ◽  
Ralf Sindelar ◽  
Yann Garcia ◽  
...  
Keyword(s):  
Visible Light ◽  
Metal Complexes ◽  
Spin State ◽  
Coordination Compounds ◽  
Spin Crossover ◽  
X Rays ◽  
Iron Compounds ◽  
Electromagnetic Irradiation ◽  
State Switching

Different kinds of stimuli to induce spin crossover in iron compounds are covered, focusing on electromagnetic irradiation-induced spin state switching phenomena in mono- as well as multinuclear coordination compounds.

ChemInform Abstract: Spin State Switching of Metal Complexes by Visible Light or Hard X-Rays

ChemInform ◽  
2016 ◽  
Vol 47 (44) ◽  
Author(s):  
Daniel Unruh ◽  
Patrick Homenya ◽  
Manish Kumar ◽  
Ralf Sindelar ◽  
Yann Garcia ◽  
...  
Keyword(s):  
Visible Light ◽  
Metal Complexes ◽  
Spin State ◽  
X Rays ◽  
State Switching

scholarly journals Spin state switching in iron coordination compounds

2013 ◽  
Vol 9 ◽  
pp. 342-391 ◽  
Author(s):  
Philipp Gütlich ◽  
Ana B Gaspar ◽  
Yann Garcia
Keyword(s):  
Spin State ◽  
Coordination Compounds ◽  
Spin Crossover ◽  
Spin Transition ◽  
Pressure Sensors ◽  
Ligand Field ◽  
Thermally Induced ◽  
Practical Applications ◽  
State Switching ◽  
Switching Phenomenon

The article deals with coordination compounds of iron(II) that may exhibit thermally induced spin transition, known as spin crossover, depending on the nature of the coordinating ligand sphere. Spin transition in such compounds also occurs under pressure and irradiation with light. The spin states involved have different magnetic and optical properties suitable for their detection and characterization. Spin crossover compounds, though known for more than eight decades, have become most attractive in recent years and are extensively studied by chemists and physicists. The switching properties make such materials potential candidates for practical applications in thermal and pressure sensors as well as optical devices. The article begins with a brief description of the principle of molecular spin state switching using simple concepts of ligand field theory. Conditions to be fulfilled in order to observe spin crossover will be explained and general remarks regarding the chemical nature that is important for the occurrence of spin crossover will be made. A subsequent section describes the molecular consequences of spin crossover and the variety of physical techniques usually applied for their characterization. The effects of light irradiation (LIESST) and application of pressure are subjects of two separate sections. The major part of this account concentrates on selected spin crossover compounds of iron(II), with particular emphasis on the chemical and physical influences on the spin crossover behavior. The vast variety of compounds exhibiting this fascinating switching phenomenon encompasses mono-, oligo- and polynuclear iron(II) complexes and cages, polymeric 1D, 2D and 3D systems, nanomaterials, and polyfunctional materials that combine spin crossover with another physical or chemical property.

scholarly journals Light-controlled spin-state-switching rearrangements of transition metal complexes with photochromic ligands

2017 ◽  
Vol 89 (8) ◽  
pp. 985-1005 ◽  
Author(s):  
Vladimir I. Minkin ◽  
Andrey G. Starikov ◽  
Alyona A. Starikova
Keyword(s):  
Magnetic Properties ◽  
Transition Metal ◽  
Dft Calculations ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Spin State ◽  
Spin Crossover ◽  
State Switching ◽  
Configurational Isomerization

Abstract New families of the transition metal complexes with photochromic ligands manifesting photoswitchable magnetic properties determined by the light-induced spin-crossover and configurational isomerization rearrangements are theoretically designed by means of DFT calculations of electromeric forms of the complexes.

scholarly journals Programmable spin-state switching in a mixed-valence spin-crossover iron grid

2014 ◽  
Vol 5 (1) ◽  
Author(s):  
Takuto Matsumoto ◽  
Graham N. Newton ◽  
Takuya Shiga ◽  
Shinya Hayami ◽  
Yuta Matsui ◽  
...  
Keyword(s):  
Spin State ◽  
Spin Crossover ◽  
Mixed Valence ◽  
State Switching

Unidirectional electric field-induced spin-state switching in spin crossover based microelectronic devices

2016 ◽  
Vol 644 ◽  
pp. 138-141 ◽  
Author(s):  
Constantin Lefter ◽  
Reasmey Tan ◽  
Julien Dugay ◽  
Simon Tricard ◽  
Gábor Molnár ◽  
...  
Keyword(s):  
Electric Field ◽  
Spin State ◽  
Spin Crossover ◽  
Microelectronic Devices ◽  
State Switching

scholarly journals Soft-x-ray-induced spin-state switching of an adsorbed Fe(II) spin-crossover complex

2017 ◽  
Vol 29 (39) ◽  
pp. 394003 ◽  
Author(s):  
Lalminthang Kipgen ◽  
Matthias Bernien ◽  
Fabian Nickel ◽  
Holger Naggert ◽  
Andrew J Britton ◽  
...  
Keyword(s):  
Spin State ◽  
Spin Crossover ◽  
X Ray ◽  
State Switching

Fe(Me2-bpy)2(NCSe)2spin-crossover micro- and nanoparticles showing spin-state switching above 250 K

2015 ◽  
Vol 39 (3) ◽  
pp. 1603-1610 ◽  
Author(s):  
Luong Lam Nguyen ◽  
Régis Guillot ◽  
Jérôme Laisney ◽  
Lionel Rechignat ◽  
Salma Bedoui ◽  
...  
Keyword(s):  
Solid State ◽  
Spin State ◽  
Spin Crossover ◽  
State Switching

Nano- and microparticles or polycrystalline powders of the Fe(Me2-bpy)2(NCSe)2spin-crossover complex were easily elaborated from the diamagnetic precursor [Fe(Me2-bpy)3](NCSe)2·S by precipitation in an anti-solvent or by solid-state thermolysis.

scholarly journals Anomalous Light‐Induced Spin‐State Switching for Iron(II) Spin‐Crossover Molecules in Direct Contact with Metal Surfaces

2020 ◽  
Vol 59 (32) ◽  
pp. 13341-13346 ◽  
Author(s):  
Luqiong Zhang ◽  
Yongfeng Tong ◽  
Massine Kelai ◽  
Amandine Bellec ◽  
Jérôme Lagoute ◽  
...  
Keyword(s):  
Spin State ◽  
Direct Contact ◽  
Metal Surfaces ◽  
Spin Crossover ◽  
State Switching

A homochiral 3D framework of mechanically interlocked 1D loops with solvent-dependent spin-state switching behaviors

2020 ◽  
Vol 56 (1) ◽  
pp. 133-136
Author(s):  
Xiao-Peng Sun ◽  
Zheng Tang ◽  
Zi-Shuo Yao ◽  
Jun Tao
Keyword(s):  
Single Crystal ◽  
Spin State ◽  
Spin Crossover ◽  
Crystal Transformation ◽  
State Switching ◽  
One Step ◽  
3D Framework

A homochiral 3D mechanically interlocked framework based on 1D loops is presented, which shows reversible single-crystal-to-single-crystal transformation and enables the interconversion between one-step and two-step spin crossover behaviors.

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