0000000000291506

AUTHOR

Ludmila Berezhnaya

showing 3 related works from this author

Pressure and Thermally Induced Spin Crossover in a 2D Iron(II) Coordination Polymer {Fe[bipy(ttr)2]}n

2021

Using magnetic measurements and UV -visible spectroscopy we have studied the pressure influence on the spin crossover (SCO) properties of the 2D Fe (II) coordination polymer formulated {Fe[bipy(ttr) 2 ]} n . At variable temperature and fixed pressure, we have measured the magnetic property of this compound. Under different pressures and at room temperature, the visible spectroscopy has been observed. The magnetic experiment displays a two-step spin crossover behavior under pressure. The visible spectroscopic measurements at room temperature show a spin crossover with an asymmetric hysteresis at 0.4GPa.

Magnetic measurementsMaterials scienceCoordination polymerAnalytical chemistry02 engineering and technology010402 general chemistry021001 nanoscience & nanotechnology01 natural sciences0104 chemical scienceschemistry.chemical_compoundHysteresisUltraviolet visible spectroscopychemistrySpin crossover0210 nano-technology2021 5th IEEE Electron Devices Technology & Manufacturing Conference (EDTM)
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Pressure Effect Studies on the Spin Transition of Microporous 3D Polymer [Fe(pz)Pt(CN)4]

2018

Pressure effects on the spin transition of the three-dimensional (3D) porous coordination polymer {Fe(pz)[Pt(CN)4]} have been investigated in the interval 105 Pa–1.0 GPa through variable-temperature (10–320 K) magnetic susceptibility measurements and spectroscopic studies in the visible region at room temperature. These studies have disclosed a different behavior of the compound under pressure. In the magnetic experiments, a temperature independent paramagnetic behavior has been observed under 0.4 GPa. In contrast, at room temperature and at 0.8 GPa, a complete HS-to-LS transition has been evidenced. The differences in the magnetic behavior are strongly related with the porous structure of …

chemistry.chemical_classificationCoordination polymerSpin transitionAnalytical chemistry02 engineering and technologyPolymerMicroporous material010402 general chemistry021001 nanoscience & nanotechnology01 natural sciencesMagnetic susceptibility0104 chemical sciencesInorganic Chemistrychemistry.chemical_compoundParamagnetismAdsorptionchemistryPhysical and Theoretical Chemistry0210 nano-technologyPorosityInorganic Chemistry
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Variable Cooperative Interactions in the Pressure and Thermally Induced Multistep Spin Transition in a Two-Dimensional Iron(II) Coordination Polymer

2020

Two types of experiments conducted to investigate the effect of pressure on the spin crossover (SCO) properties of the 2D Fe(II) coordination polymer formulated {Fe[bipy(ttr)2]}n are reported, namely, (1) magnetic measurements performed at variable temperature and at fixed pressure and (2) visible spectroscopy at variable pressure and fixed temperature. The magnetic experiments carried out under a hydrostatic pressure constraint of 0.04, 0.08, and 0.8 GPa reveal a two-step spin transition behavior. The characteristic critical temperatures of the spin transition are shifted upward in temperature as pressure increases. The slope of the straight-line of the Tc vs P plot, dTc/dP, is 775 K/GPa a…

010405 organic chemistryCoordination polymerHydrostatic pressureSpin transitionElastic energyThermodynamicsFlory–Huggins solution theory010402 general chemistry01 natural sciences0104 chemical sciencesInorganic Chemistrychemistry.chemical_compoundUltraviolet visible spectroscopychemistrySpin crossoverLattice (order)Physical and Theoretical ChemistryInorganic Chemistry
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