First study of the photo-induced metastable (paramagnetic) high-spin state in a [Fe(ptz) 6 ](BF 4 ) 2 single crystal by polarised neutron diffraction

Polyhedron ◽  
2003 ◽  
Vol 22 (14-17) ◽  
pp. 2155-2160 ◽  
Author(s):  
Jelena Jeftić ◽  
Béatrice Gillon ◽  
Antoine Goujon ◽  
Quitterie Nau ◽  
Arsen Gukasov ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Single Crystal ◽  
High Spin ◽  
Spin State ◽  
High Spin State

Stability of High-Spin State of Iron in β-NaFeO2

2020 ◽  
Vol 855 ◽  
pp. 177-182
Author(s):  
Mochammad Yan Pandu Akbar ◽  
Rieko Ishii ◽  
Agustinus Agung Nugroho
Keyword(s):  
Single Crystal ◽  
High Spin ◽  
Spin State ◽  
High Spin State ◽  
Polycrystalline Sample ◽  
Single Crystal Sample ◽  
Structural Refinement ◽  
Crystal Sample ◽  
The Stability ◽  
Crystal Volume

We investigated the stability of the high-spin state of the iron β-NaFeO2 based on the structural refinement. The oxidation of the Fe2+ ion in the as-synthesized sample is evidenced by its green color. Due to its sensitivity in air and CO2, this compound will decompose into a reddish Fe3+ state. The smaller crystal volume of the decomposed compound is mainly related to the shorter ionic radius of the high-spin state Fe3+ and this result will be compared to the single crystal sample. In contrast to the polycrystalline sample, the decomposition single crystal sample only taking place on the surface of the as-grown crystal.

Theoretical study on the reduction reactions from solid char(N): The effect of the nearby group and the high-spin state

Energy ◽  
2019 ◽  
Vol 189 ◽  
pp. 116286 ◽  
Author(s):  
Hai Zhang ◽  
Lei Luo ◽  
Jiaxun Liu ◽  
Anyao Jiao ◽  
Jianguo Liu ◽  
...  
Keyword(s):  
High Spin ◽  
Spin State ◽  
Theoretical Study ◽  
High Spin State ◽  
Reduction Reactions

scholarly journals Supercooled high spin state in metallo-supramolecular assemblies

2007 ◽  
Vol 63 (a1) ◽  
pp. s202-s202
Author(s):  
U. Pietsch ◽  
M. Lommel ◽  
Y. Bodethin ◽  
D. Kurth ◽  
G. Schwarzl ◽  
...  
Keyword(s):  
High Spin ◽  
Spin State ◽  
High Spin State ◽  
Supramolecular Assemblies

High-Spin State Fe(III) Doped TiO2 for Electrocatalytic Nitrogen Fixation Induced by Surface F Modification

2021 ◽  
pp. 120809
Author(s):  
Guangxin Song ◽  
Rui Gao ◽  
Zhao Zhao ◽  
Yujun Zhang ◽  
Huaqiao Tan ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
High Spin ◽  
Spin State ◽  
High Spin State ◽  
Doped Tio2

Electric Field Induced Room Temperature Null to High Spin State Switching: A Computational Prediction

2019 ◽  
Vol 2 (4) ◽  
pp. 1900005 ◽  
Author(s):  
Carlos O. Amorim ◽  
João S. Amaral ◽  
João N. Gonçalves ◽  
Vítor S. Amaral
Keyword(s):  
Electric Field ◽  
High Spin ◽  
Spin State ◽  
Room Temperature ◽  
High Spin State ◽  
Computational Prediction ◽  
State Switching

Vibrational Coherences and Relaxation in the High-Spin State of Aqueous [FeII(bpy)3]2+

2009 ◽  
Vol 121 (39) ◽  
pp. 7320-7323 ◽  
Author(s):  
Cristina Consani ◽  
Mirabelle Prémont-Schwarz ◽  
Amal ElNahhas ◽  
Christian Bressler ◽  
Frank van Mourik ◽  
...  
Keyword(s):  
High Spin ◽  
Spin State ◽  
High Spin State

Ionic complex of fullerene C602− dianions with (MDABCO+)2·MnIITPP coordination assemblies: synthesis, crystal structure and magnetic properties

2008 ◽  
Vol 12 (11) ◽  
pp. 1146-1153 ◽  
Author(s):  
Dmitri V. Konarev ◽  
Salavat S. Khasanov ◽  
Gunzi Saito ◽  
Rimma N. Lyubovskaya
Keyword(s):  
High Spin ◽  
Spin State ◽  
Magnetic Measurements ◽  
High Spin State ◽  
Radial Expansion ◽  
Ionic Complex ◽  
Porphyrin Core ◽  
First Time ◽  
Center Distance ◽  
Positively Charged

The crystals of the ionic complex containing fullerene C 602− dianions and positively charged ( MDABCO +)2· Mn II TPP assemblies: {( MDABCO +)2·MnII TPP }·( C 602−)·( C 6 H 4 Cl 2)4·( CH 3 CN )2 (1) were obtained for the first time ( MDABCO +: the cation of N-methyldiazabicyclooctane; TPP: tetraphenylporphyrin). The C 602− dianions are isolated in the complex with the shortest center-to-center distance of 13.228 Å. The Mn II atoms are six-coordinated in the ( MDABCO +)2· Mn II TPP units. The length of the Mn-N(TPP) equatorial bonds of 2.093-2.098(1) Å corresponds to the high-spin state of the Mn II atoms (S = 5/2) which was confirmed by the magnetic measurements (µ eff = 5.61 µ B at 300 K). The Mn II atoms are located exactly in the porphyrin plane and this results in the radial expansion of the porphyrin core. The long (2.537(1)−2.545(1) Å) Mn - N ( MDABCO +) axial bonds indicate essential destabilization of the six-coordinated ( MDABCO +)2· Mn II TPP units due to the population of the d ( z 2) orbital in high-spin state. The contribution from the C 602− dianions was not found in magnetic measurements on the basis of the contribution from high-spin Mn II TPP and most probably they are diamagnetic in the 2-300 K range.

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