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.

Single crystal to single crystal transformation of spin-crossover coordination polymers from 3D frameworks to 2D layers

2021 ◽  
Vol 9 (15) ◽  
pp. 5082-5087
Author(s):  
Yu Gong ◽  
Wang-Kang Han ◽  
Hui-Shu Lu ◽  
Qing-Tao Hu ◽  
Huan Tu ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Single Crystal ◽  
Coordination Polymers ◽  
Ligand Exchange ◽  
Spin Crossover ◽  
Metal Organic Frameworks ◽  
Crystal Transformation ◽  
Metal Organic

New Hofmann-type metal–organic frameworks display rare and complete ligand exchange induced single crystal to single crystal transformations from 3D frameworks to 2D layers, accompanied by magnetic properties transition from two-step SCO behavior to hysteretic SCO behavior.

Water molecule induced reversible single-crystal-to-single-crystal transformation between two trinuclear Fe(ii) complexes with different spin crossover behaviour

2018 ◽  
Vol 47 (12) ◽  
pp. 4307-4314 ◽  
Author(s):  
Wen-Bin Chen ◽  
Yan-Cong Chen ◽  
Meng Yang ◽  
Ming-Liang Tong ◽  
Wen Dong
Keyword(s):  
Water Molecule ◽  
Single Crystal ◽  
Spin Crossover ◽  
Crystal Transformation

Water molecule induced reversible single-crystal-to-single-crystal transformation between two trinuclear Fe(ii) complexes with different spin crossover behaviour.

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

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.

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

Spin State Transition Studied by Means of Optical Microscope

2010 ◽  
Vol 163 ◽  
pp. 46-50 ◽  
Author(s):  
Maciej Zubko ◽  
Paweł Zajdel ◽  
Joachim Kusz
Keyword(s):  
Spin State ◽  
Spin Crossover ◽  
State Transition ◽  
Optical Microscope ◽  
X Ray ◽  
Spin State Transition ◽  
Transmission Geometry ◽  
One Step ◽  
Analysis Of Change

We have tested a new method which allows assigning the spin state of the spin crossover (SCO) crystal in-situ during the diffraction experiment. The method is based on the analysis of change of the colour of the SCO compounds. We have found that the off-line setup in transmission geometry is reliable in assigning the magnitude of high spin molecules fraction (γHS) and the character (one step, many steps, histeresis) of the SCO transition. Later on, this method has been used in the in-situ measurements directly on X-ray four-circle diffractometer.

The photo-thermal plasmonic effect in spin crossover@silica–gold nanocomposites

2014 ◽  
Vol 50 (86) ◽  
pp. 13015-13018 ◽  
Author(s):  
Iurii Suleimanov ◽  
José Sánchez Costa ◽  
Gábor Molnár ◽  
Lionel Salmon ◽  
Azzedine Bousseksou
Keyword(s):  
Gold Nanoparticles ◽  
Raman Spectroscopy ◽  
Spin State ◽  
Spin Crossover ◽  
Plasmonic Effect ◽  
State Switching ◽  
Gold Nanocomposites

Nanocomposite spin crossover materials with gold nanoparticles were synthesized and plasmon-enhanced photothermal spin state switching was evidenced using Raman spectroscopy.

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