1. 'Normal' and 'reverse' spin crossover induced by two different structural events in iron( ) coordination polymer
- Author
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Weselski, Marek, Książek, Maria, Mess, Pamela, Kusz, Joachim, and Bronisz, Robert
- Subjects
Materials science ,010405 organic chemistry ,Coordination polymer ,Metals and Alloys ,General Chemistry ,010402 general chemistry ,01 natural sciences ,Catalysis ,0104 chemical sciences ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,Ion ,chemistry.chemical_compound ,Crystallography ,Hysteresis ,chemistry ,Spin crossover ,Materials Chemistry ,Ceramics and Composites ,Molecule - Abstract
Conformational changes of the bridging ligand and reorientation of the anions are associated with a sequence of HT(HS) ⇆ HT(HS/LS) ⇆ IP(HS) ⇆ LT(LS) transitions accompanied by existence of two hysteresis loops, “normal” and “reverse”, separated by a region of the stability of the HS form., In [Fe(ebbtr) (CH CN) ](CF SO ) ·4CH CN spin crossover is associated with the occurrence of “normal” and “reverse” hysteresis loops separated by a region of stable HS form. This results from – → – conformational changes of ebbtr molecules and anion reorientation, which occur in different ways during cooling and during heating.
- Published
- 2019
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