scholarly journals Development of MagSaki Software for Magnetic Analysis of Dinuclear High-spin Cobalt (II) Complexes in an Axially Distorted Octahedral Field.

2001 ◽  
Vol 7 (4) ◽  
pp. 171-177 ◽  
Author(s):  
Hiroshi SAKIYAMA
Keyword(s):  
High Spin ◽  
Distorted Octahedral ◽  
Magnetic Analysis

scholarly journals Temperature- and pressure-dependent structural study of {Fe(pmd)2[Ag(CN)2]2}nspin-crossover compound by neutron Laue diffraction

2014 ◽  
Vol 70 (3) ◽  
pp. 436-443 ◽  
Author(s):  
José Alberto Rodríguez-Velamazán ◽  
Laura Cañadillas-Delgado ◽  
Miguel Castro ◽  
Garry J. McIntyre ◽  
José Antonio Real
Keyword(s):  
High Spin ◽  
Ambient Pressure ◽  
Spin Transition ◽  
Group Symmetry ◽  
Bridging Ligands ◽  
Laue Diffraction ◽  
Structural Consequence ◽  
Distorted Octahedral ◽  
Moderate Sensitivity ◽  
Temperature And Pressure

The effect of pressure (up to 0.17 GPa) on the spin-crossover compound {Fe(pmd)2[Ag(CN)2]2}n[orthorhombic isomer (II), pmd = pyrimidine] has been investigated by temperature- and pressure-dependent neutron Laue diffraction and magnetometry. The cooperative high-spin ↔ low-spin transition, centred atca180 K at ambient pressure, is shifted to higher temperatures as pressure is applied, showing a moderate sensitivity of the compound to pressure, since the spin transition is displaced byca140 K GPa−1. The space-group symmetry (orthorhombicPccn) remains unchanged over the pressure–temperature (P–T) range studied. The main structural consequence of the high-spin to low-spin transition is the contraction of the distorted octahedral [FeN6] chromophores, being more marked in the axial positions (occupied by the pmd units), than in the equatorial positions (occupied by four [Ag(CN)2]−bridging ligands).

scholarly journals Field-Induced Single-Ion Magnetism Based on Spin-Phonon Relaxation in a Distorted Octahedral High-Spin Cobalt(II) Complex

2016 ◽  
Vol 2016 (20) ◽  
pp. 3220-3220 ◽  
Author(s):  
Ryuta Ishikawa ◽  
Yoji Horii ◽  
Ryo Nakanishi ◽  
Shunya Ueno ◽  
Brian K. Breedlove ◽  
...  
Keyword(s):  
High Spin ◽  
Distorted Octahedral

scholarly journals Front Cover: Field-Induced Single-Ion Magnetism Based on Spin-Phonon Relaxation in a Distorted Octahedral High-Spin Cobalt(II) Complex (Eur. J. Inorg. Chem. 20/2016)

2016 ◽  
Vol 2016 (20) ◽  
pp. 3219-3219
Author(s):  
Ryuta Ishikawa ◽  
Yoji Horii ◽  
Ryo Nakanishi ◽  
Shunya Ueno ◽  
Brian K. Breedlove ◽  
...  
Keyword(s):  
High Spin ◽  
Front Cover ◽  
Distorted Octahedral

Field-Induced Single-Ion Magnetism Based on Spin-Phonon Relaxation in a Distorted Octahedral High-Spin Cobalt(II) Complex

2016 ◽  
Vol 2016 (20) ◽  
pp. 3233-3239 ◽  
Author(s):  
Ryuta Ishikawa ◽  
Yoji Horii ◽  
Ryo Nakanishi ◽  
Shunya Ueno ◽  
Brian K. Breedlove ◽  
...  
Keyword(s):  
High Spin ◽  
Distorted Octahedral

scholarly journals Bis(di-2-pyridylmethanediol-κ3N,O,N′)nickel(II) dinitrate

2009 ◽  
Vol 65 (6) ◽  
pp. m678-m679 ◽  
Author(s):  
Seung Man Yu ◽  
Young Joo Song ◽  
Kang Chul Kim ◽  
Cheal Kim ◽  
Youngmee Kim
Keyword(s):  
Hydrogen Bonds ◽  
High Spin ◽  
Title Compound ◽  
Coordination Mode ◽  
Nitrate Anion ◽  
Inversion Center ◽  
Bond Lengths ◽  
Octahedral Environment ◽  
Distorted Octahedral

The title compound, [Ni(C11H10N2O2)2](NO3)2, consists of an NiIIatom coordinated by two tridentate chelating di-2-pyridylmethanediol [(2-py)2C(OH)2] ligands. The NiIIatom is located on an inversion center. The geometry around the NiIIatom is distorted octahedral. Thegem-diol (2-py)2C(OH)2ligand adopts the coordination mode η1:η1:η1. The Ni—N and Ni—O bond lengths are typical for high-spin NiIIin an octahedral environment [Ni—N = 2.094 (2) and 2.124 (3) Å, and Ni—O = 2.108 (3) Å]. One of the hydroxy H atoms is split over two positions which both interact with the nitrate anion. The occurence of different O—H...O hydrogen bonds leads to the formation of a layer parallel to the (101) plane.

scholarly journals A new mononuclear neutral high-spin iron(III) complex with the different tridentate ligands 5-bromosalicylaldehyde (pyridin-2-yl)hydrazone and 5-bromosalicylaldehyde thiosemicarbazone

2018 ◽  
Vol 74 (2) ◽  
pp. 252-255 ◽  
Author(s):  
Yun Zhao ◽  
Xiao-Feng Shen ◽  
Li-Fang Zhang
Keyword(s):  
High Spin ◽  
Magnetic Measurements ◽  
High Spin State ◽  
Mononuclear Complex ◽  
Monoclinic Space Group ◽  
Coordination Geometry ◽  
Tridentate Ligands ◽  
Complex Molecules ◽  
Distorted Octahedral ◽  
High Spin Iron

The title neutral mononuclear complex, [1-(5-bromo-2-oxidobenzylidene)thiosemicarbazidato](4-bromo-2-{[2-(pyridin-2-yl)hydrazinylidene]methyl}phenolato)iron(III), [Fe(C8H6BrN3OS)(C12H9BrN3O)] (I), crystallizes in the monoclinic space group C 2/c and has two different planar tridentate ligands. The central FeIII ion is coordinated to three N, two O and one S atom, forming a distorted octahedral FeN3O2S coordination geometry. In the crystal, the complex molecules are linked by N—H...O and N—H...N hydrogen bonds and π–π interactions into layers parallel to (100). Magnetic measurements show that the central FeIII ion is in the high-spin state; this is also supported by the bond distances around the FeIII ion.

Solvatomorphism and Electronic Communication in FeIII N,N-Bis(salicylidene)-1,3-propanediamine Dimers

2015 ◽  
Vol 68 (5) ◽  
pp. 766 ◽  
Author(s):  
Jitnapa Sirirak ◽  
David J. Harding ◽  
Phimphaka Harding ◽  
Lujia Liu ◽  
Shane G. Telfer
Keyword(s):  
High Spin ◽  
Large Distance ◽  
Electronic Communication ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Electrochemical Studies ◽  
X Ray ◽  
Distorted Octahedral ◽  
1D Chains

The reaction of H2salpn (H2salpn = N,N′-bis(salicylidene)-1,3-propanediamine) with Fe(ClO4)3 in a ratio of 1 : 1 and 3 : 2, leads to dark red crystals of the solvatomorphs [(salpn)Fe(μ2-salpn)Fe(salpn)]·0.5MeOH (1) and [(salpn)Fe(μ2-salpn)Fe(salpn)]·MeOH (2), respectively. X-Ray crystallographic studies reveal a slightly distorted octahedral geometry and meridional configuration of the N and O donor atoms with one of the salpn ligands acting as a bridge between the two FeIII atoms to create a dimer. The Fe–N/O bond distances for both dimers indicate that the Fe centres are high spin. Supramolecular dimeric pairs are formed in both structures from C–H···π and/or C–H···O interactions. However, the degree of solvation significantly impacts the arrangements of these dimeric pairs with tightly packed 1D chains in 2 and more loosely packed chains in 1. In addition, electrochemical studies reveal weak communication between the two Fe atoms despite the large distance between them and the lack of conjugation across the bridge.

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