scholarly journals Water effect on the spin-transition behavior of Fe(ii) 1,2,4-triazole 1D chains embedded in pores of MCM-41

2015 ◽  
Vol 3 (30) ◽  
pp. 7802-7812 ◽  
Author(s):  
Tian Zhao ◽  
Laure Cuignet ◽  
Marinela Maria Dîrtu ◽  
Mariusz Wolff ◽  
Vojislav Spasojevic ◽  
...  
Keyword(s):  
Matrix Effect ◽  
Spin Transition ◽  
Water Effect ◽  
Transition Behavior ◽  
Confinement Pressure ◽  
1D Chains ◽  
Mcm 41

Water is crucial in exerting a confinement pressure or matrix effect on the spin transition of the SCO material in MCM-41.

scholarly journals The Nano-Confinement Effect on the SCO Behavior of [Fe(NH2trz)3](NO3)2 1D Chains in MCM-41

Crystals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 639
Author(s):  
Tian Zhao ◽  
Hexin Zhu ◽  
Ming Dong
Keyword(s):  
Magnetic Measurement ◽  
Spin Transition ◽  
Magnetic Data ◽  
Transition Curve ◽  
Polymeric Chain ◽  
Infrared Spectrometry ◽  
Confinement Pressure ◽  
Significant Difference ◽  
Temperature Variable ◽  
Mcm 41

A polymeric chain spin-crossover (SCO) compound [Fe(NH2trz)3](NO3)2 was embedded in the pores of mesoporous silica MCM-41, which yielded an M@S composite. The obtained material was characterized by infrared spectrometry, powder X-ray diffractometry, gas sorption studies, electron microscopy, and atomic absorption. The temperature-induced SCO behavior of the composite was monitored by temperature-variable magnetic measurement. The results indicate that the spin transition curve of the composite was evidently shifted to a higher temperature in comparison to bulk [Fe(NH2trz)3](NO3)2. The shift in the transition temperature for M@S [versus bulk [Fe(NH2trz)3](NO3)2] amounted to Tc↑ = 362 K [347 K] and Tc↓ = 327 K [314 K] (magnetic data). The significant difference in the SCO behavior of [Fe(NH2trz)3](NO3)2 when embedded in the MCM-41 matrix may be attributed to the strengthened cooperativity of compound S and the nano-confinement pressure of SiO2 walls.

Effect of crystal quality on the spin-transition behavior in a cobalt(II) complex

1984 ◽  
Vol 23 (1) ◽  
pp. 119-120 ◽  
Author(s):  
E. W. Mueller ◽  
H. Spiering ◽  
P. Guetlich
Keyword(s):  
Spin Transition ◽  
Crystal Quality ◽  
Transition Behavior

Pressure Effect Studies on the High Spin ⇆ Low Spin Transition Behavior Observed in [Fe(II)(bpp)2](NCS)2.2H2O

2017 ◽  
Vol 2 (1) ◽  
Author(s):  
Ashis Bhattacharjee ◽  
Masataka Tsugimoto ◽  
Yashuhiro Nakazawa ◽  
Harold A. Goodwin
Keyword(s):  
High Spin ◽  
Pressure Effect ◽  
Spin Transition ◽  
Transition Behavior

scholarly journals Versatile nano-platforms for hybrid systems: expressing spin-transition behavior on nanoparticles

2015 ◽  
Vol 3 (14) ◽  
pp. 3350-3355 ◽  
Author(s):  
A. Paquirissamy ◽  
A. R. Ruyack ◽  
A. Mondal ◽  
Y. Li ◽  
R. Lescouëzec ◽  
...  
Keyword(s):  
Silica Nanoparticles ◽  
Hybrid Systems ◽  
Spin Transition ◽  
Transition Behavior

Hybrid spin-transition nanoparticles (HSTNs) have been prepared by the formation of octahedral Fe(ii) complexes at the surface of silica nanoparticles.

Magnetic observation of above room-temperature spin transition in vesicular nano-spheres

2016 ◽  
Vol 4 (34) ◽  
pp. 8061-8069 ◽  
Author(s):  
Yang-Hui Luo ◽  
Qing-Ling Liu ◽  
Li-Jing Yang ◽  
Yu Sun ◽  
Jin-Wen Wang ◽  
...  
Keyword(s):  
Self Assembly ◽  
Room Temperature ◽  
Spin Transition ◽  
Assembly Strategy ◽  
Transition Behavior

Above room-temperature spin-transition behavior has been achieved in a series of vesicular nano-spheres, which were prepared via a liposomal self-assembly strategy.

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