Spin-crossover in iron(ii) coordination compounds with 2,6-bis(benzimidazol-2-yl)pyridine

2020 ◽  
Vol 44 (15) ◽  
pp. 5834-5840 ◽  
Author(s):  
A. D. Ivanova ◽  
E. V. Korotaev ◽  
V. Yu. Komarov ◽  
L. A. Sheludyakova ◽  
V. A. Varnek ◽  
...  
Keyword(s):  
High Temperature ◽  
Coordination Compounds ◽  
Spin Crossover

Novel iron(ii) bromide, nitrate and dicyanamide complexes with 2,6-bis(benzimidazol-2-yl)pyridine possessing high-temperature 1A1 ↔ 5T2 spin crossover were obtained.

New Iron(II) Complexes [Fe(HC(Pz)3)2]A2 with Spin-Crossover

2015 ◽  
Vol 233-234 ◽  
pp. 534-537 ◽  
Author(s):  
Оlga G. Shakirova ◽  
Natalia V. Kuratieva ◽  
Evgeny V. Korotaev ◽  
Ludmila G. Lavrenova
Keyword(s):  
Magnetic Susceptibility ◽  
High Temperature ◽  
Ir Spectroscopy ◽  
Structure Analysis ◽  
Coordination Compounds ◽  
Spin Crossover ◽  
Color Change ◽  
Static Magnetic Susceptibility ◽  
X Ray ◽  
Magnetochemical Study

Three new coordination compounds of iron (II), [Fe (HC(Pz)3)2](C8H5O4)2.C8H6O4(I), [Fe (HC(Pz)3)2](C10H7SO3)2.2H2O (II) and Fe (HC(Pz)3)2](C12H25SO4)2(III), where HC(Pz)3is the tridentate chelatortris(pyrazol-1-yl) methane, have been synthesized and investigated by X-ray structure analysis, electronic and IR spectroscopy, static magnetic susceptibility method. The magnetochemical study of complexes I–III in the interval from 300 to 500 K showed that they possessed the high-temperature spin crossover1A1↔5T2accompanied by thermochromism (the pink ↔ white color change).

High-temperature spin-crossover in coordination compounds of iron(II) with tris(pyrazol-1-yl)methane

2010 ◽  
Vol 363 (14) ◽  
pp. 4059-4064 ◽  
Author(s):  
O.G. Shakirova ◽  
L.G. Lavrenova ◽  
V.A. Daletsky ◽  
E.A. Shusharina ◽  
T.P. Griaznova ◽  
...  
Keyword(s):  
High Temperature ◽  
Coordination Compounds ◽  
Spin Crossover

scholarly journals Stabilization of the Low-Spin State in a Mononuclear Iron(II) Complex and High-Temperature Cooperative Spin Crossover Mediated by Hydrogen Bonding

2015 ◽  
Vol 22 (1) ◽  
pp. 331-339 ◽  
Author(s):  
Sipeng Zheng ◽  
Niels R. M. Reintjens ◽  
Maxime A. Siegler ◽  
Olivier Roubeau ◽  
Elisabeth Bouwman ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
High Temperature ◽  
Spin State ◽  
Spin Crossover ◽  
Mononuclear Iron

High-Temperature Spin Crossover in a Mononuclear Six-Coordinate Cobalt(II) Complex

2014 ◽  
Vol 53 (19) ◽  
pp. 10009-10011 ◽  
Author(s):  
Joanna Palion-Gazda ◽  
Anna Świtlicka-Olszewska ◽  
Barbara Machura ◽  
Thais Grancha ◽  
Emilio Pardo ◽  
...  
Keyword(s):  
High Temperature ◽  
Spin Crossover

High-temperature spin crossover in the [Fe(L)2][Fe(L)(NCS)3](NCS)·2H2O complex, L=tris(pyrazol-1-yl)methane

Polyhedron ◽  
2012 ◽  
Vol 31 (1) ◽  
pp. 64-68 ◽  
Author(s):  
O.G. Shakirova ◽  
L.G. Lavrenova ◽  
D.Yu. Naumov ◽  
V.A. Daletsky ◽  
L.A. Sheludyakova
Keyword(s):  
High Temperature ◽  
Spin Crossover

High-Temperature Spin Crossover in Complexes of Iron(II) closo-Borates with 2,6-Bis(benzimidazol-2-yl)pyridine

2020 ◽  
Vol 65 (11) ◽  
pp. 1687-1694
Author(s):  
A. D. Ivanova ◽  
L. G. Lavrenova ◽  
E. V. Korotaev ◽  
S. V. Trubina ◽  
L. A. Sheludyakova ◽  
...  
Keyword(s):  
High Temperature ◽  
Spin Crossover

High-temperature photo-induced switching and pressure-induced transition in a cooperative molecular spin-crossover material

2014 ◽  
Vol 43 (2) ◽  
pp. 729-737 ◽  
Author(s):  
Gavin A. Craig ◽  
Jose Sánchez Costa ◽  
Olivier Roubeau ◽  
Simon J. Teat ◽  
Helena J. Shepherd ◽  
...  
Keyword(s):  
High Temperature ◽  
Spin Crossover ◽  
Molecular Spin

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.

High-Temperature Spin Crossover Behavior in a Nitrogen-Rich FeIII-Based System

2013 ◽  
Vol 52 (4) ◽  
pp. 1825-1831 ◽  
Author(s):  
Cyril Cook ◽  
Fatemah Habib ◽  
Tomoko Aharen ◽  
Rodolphe Clérac ◽  
Anguang Hu ◽  
...  
Keyword(s):  
High Temperature ◽  
Spin Crossover ◽  
Crossover Behavior
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