Spatiotemporal Observation and Modeling of Remarkable Temperature Scan Rate Effects on the Thermal Hysteresis in a Spin-Crossover Single Crystal

2017 ◽  
Vol 121 (21) ◽  
pp. 11700-11708 ◽  
Author(s):  
Rachid Traiche ◽  
Mouhamadou Sy ◽  
Hassane Oubouchou ◽  
Guillaume Bouchez ◽  
François Varret ◽  
...  
Keyword(s):  
Single Crystal ◽  
Spin Crossover ◽  
Thermal Hysteresis ◽  
Rate Effects ◽  
Scan Rate

Dynamical control of the spin transition inside the thermal hysteresis loop of a spin-crossover single crystal

2016 ◽  
Vol 486 ◽  
pp. 187-191 ◽  
Author(s):  
Kamel Boukheddaden ◽  
Mouhamadou Sy ◽  
Miguel Paez-Espejo ◽  
Ahmed Slimani ◽  
François Varret
Keyword(s):  
Single Crystal ◽  
Hysteresis Loop ◽  
Spin Crossover ◽  
Thermal Hysteresis ◽  
Spin Transition ◽  
Thermal Hysteresis Loop ◽  
Dynamical Control

Heating-rate dependence of spin-crossover hysteresis observed in an iron(ii) complex having tris(2-pyridyl)methanol

2015 ◽  
Vol 3 (30) ◽  
pp. 7784-7787 ◽  
Author(s):  
Masaru Yamasaki ◽  
Takayuki Ishida
Keyword(s):  
Heating Rate ◽  
Spin Crossover ◽  
Thermal Hysteresis ◽  
Rate Dependence ◽  
Scan Rate

Me4N[Fe(py3COH)(NCS)3](H2O) showed an abrupt spin-crossover with thermal hysteresis, and temperature-scan rate dependence was recorded upon heating.

Spatiotemporal Investigations on Light-Driven High-Spin–Low-Spin Interface Dynamics in the Thermal Hysteresis Region of a Spin-Crossover Single Crystal

2018 ◽  
Vol 122 (36) ◽  
pp. 20952-20962 ◽  
Author(s):  
Mouhamadou Sy ◽  
Rachid Traiche ◽  
Houcem Fourati ◽  
Yogendra Singh ◽  
François Varret ◽  
...  
Keyword(s):  
Single Crystal ◽  
High Spin ◽  
Spin Crossover ◽  
Thermal Hysteresis ◽  
Interface Dynamics

Scan-rate and vacuum pressure dependence of the nucleation and growth dynamics in a spin-crossover single crystal: the role of latent heat

2018 ◽  
Vol 20 (14) ◽  
pp. 9139-9145 ◽  
Author(s):  
Karl Ridier ◽  
Sylvain Rat ◽  
Lionel Salmon ◽  
William Nicolazzi ◽  
Gábor Molnár ◽  
...  
Keyword(s):  
Heat Exchange ◽  
Single Crystal ◽  
Pressure Dependence ◽  
Spin Crossover ◽  
Growth Dynamics ◽  
Nucleation And Growth ◽  
Switching Dynamics ◽  
Scan Rate ◽  
Hysteresis Properties

A heat exchange dependence was evidenced on both the hysteresis properties and the switching dynamics of a spin-crossover single crystal.

Remarkable Scan Rate Dependence for a Highly Constrained Dinuclear Iron(II) Spin Crossover Complex with a Wide Thermal Hysteresis Loop

2014 ◽  
Vol 136 (3) ◽  
pp. 878-881 ◽  
Author(s):  
Rafal Kulmaczewski ◽  
Juan Olguín ◽  
Jonathan A. Kitchen ◽  
Humphrey L. C. Feltham ◽  
Guy N. L. Jameson ◽  
...  
Keyword(s):  
Hysteresis Loop ◽  
Spin Crossover ◽  
Thermal Hysteresis ◽  
Rate Dependence ◽  
Dinuclear Iron ◽  
Scan Rate ◽  
Thermal Hysteresis Loop

Spin crossover with thermal hysteresis in cobalt(ii) complexes and the importance of scan rate

2014 ◽  
Vol 38 (5) ◽  
pp. 1932 ◽  
Author(s):  
Reece G. Miller ◽  
Suresh Narayanaswamy ◽  
Jeffery L. Tallon ◽  
Sally Brooker
Keyword(s):  
Spin Crossover ◽  
Thermal Hysteresis ◽  
Scan Rate

scholarly journals High-Temperature Cooperative Spin Crossover Transitions and Single-Crystal Reflection Spectra of [FeIII(qsal)2](CH3OSO3) and Related Compounds

Crystals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 81 ◽  
Author(s):  
Kazuyuki Takahashi ◽  
Kaoru Yamamoto ◽  
Takashi Yamamoto ◽  
Yasuaki Einaga ◽  
Yoshihito Shiota ◽  
...  
Keyword(s):  
High Temperature ◽  
Single Crystal ◽  
Crystal Structures ◽  
Optical Conductivity ◽  
Density Functional ◽  
Spin Crossover ◽  
Thermal Hysteresis ◽  
Reflection Spectra ◽  
Absorption Bands ◽  
Conductivity Spectra

New Fe(III) compounds from qsal ligand, [Fe(qsal)2](CH3OSO3) (1) and [Fe(qsal)2](CH3SO3)·CH3OH (3), along with known compound, [Fe(qsal)2](CF3SO3) (2), were obtained as large well-shaped crystals (Hqsal = N-(8-quinolyl)salicylaldimine). The compounds 1 and 2 were in the low-spin (LS) state at 300 K and exhibited a cooperative spin crossover (SCO) transition with a thermal hysteresis loop at higher temperatures, whereas 3 was in the high-spin (HS) state below 300 K. The optical conductivity spectra for 1 and 3 were calculated from the single-crystal reflection spectra, which were, to the best of our knowledge, the first optical conductivity spectra of SCO compounds. The absorption bands for the LS and HS [Fe(qsal)2] cations were assigned by time-dependent density functional theory calculations. The crystal structures of 1 and 2 consisted of a common one-dimensional (1D) array of the [Fe(qsal)2] cation, whereas that of 3 had an unusual 1D arrangement by π-stacking interactions which has never been reported. The crystal structures in the high-temperature phases for 1 and 2 indicate that large structural changes were triggered by the motion of counter anions. The comparison of the crystal structures of the known [Fe(qsal)2] compounds suggests the significant role of a large non-spherical counter-anion or solvate molecule for the total lattice energy gain in the crystal of a charged complex.

ChemInform Abstract: Spin Crossover with Thermal Hysteresis in Cobalt(II) Complexes and the Importance of Scan Rate

ChemInform ◽  
2014 ◽  
Vol 45 (26) ◽  
pp. no-no
Author(s):  
Reece G. Miller ◽  
Suresh Narayanaswamy ◽  
Jeffery L. Tallon ◽  
Sally Brooker
Keyword(s):  
Spin Crossover ◽  
Thermal Hysteresis ◽  
Scan Rate

Spin-crossover in an iron(iii) complex showing a broad thermal hysteresis

2021 ◽  
Author(s):  
Cyril Rajnák ◽  
Romana Mičová ◽  
Ján Moncoľ ◽  
Ľubor Dlháň ◽  
Christoph Krüger ◽  
...  
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Spin Crossover ◽  
Thermal Hysteresis ◽  
Mononuclear Complex ◽  
Hysteresis Width ◽  
Thermally Induced

A pentadentate Schiff-base ligand 3,5Cl-L2− and NCSe− form a iron(iii) mononuclear complex [Fe(3,5Cl-L)(NCSe)], which shows a thermally induced spin crossover with a broad hysteresis width of 24 K between 123 K (warming) and 99 K (cooling).

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