Back to Search
Start Over
Unusual Solvent Dependence of a Molecule-Based FeII Macrocyclic Spin-Crossover Complex.
- Source :
- European Journal of Inorganic Chemistry; Oct2014, Vol. 2014 Issue 29, p4927-4933, 7p
- Publication Year :
- 2014
-
Abstract
- This work illustrates in detail the reversible hydration-dehydration process of a molecule-based material, which involves a drastic change of the switchable magnetic properties of the sample. Concretely, the complex [FeL<subscript>222</subscript>N<subscript>3</subscript>O<subscript>2</subscript>(CN)<subscript>2</subscript>] ·H<subscript>2</subscript>O exhibits a spin crossover (SCO) accompanied by a change of the coordination number. The dehydration and rehydration of this SCO complex was carried out and monitored by different methods, which include X-ray diffraction analysis. The corresponding samples display a thermal spin transition as well as a thermal quenching of the metastable high-spin state at low temperature. In particular it was observed that the rehydrated material exhibits a particularly high temperature of relaxation, T(TIESST), of the metastable high-spin state. On the other hand, it was shown that this compound exhibits a uncommon correlation between T(TIESST) and the thermal SCO, as compared with other spin-crossover compounds that do not exhibit a change in coordination number. [ABSTRACT FROM AUTHOR]
- Subjects :
- IRON
SPIN crossover
MAGNETIC properties
MOLECULES
TEMPERATURE
Subjects
Details
- Language :
- English
- ISSN :
- 14341948
- Volume :
- 2014
- Issue :
- 29
- Database :
- Complementary Index
- Journal :
- European Journal of Inorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 98836166
- Full Text :
- https://doi.org/10.1002/ejic.201402666