1. A Mixed-Ligand Approach for Spin-Crossover Modulation in a Linear FeII Coordination Polymer.
- Author
-
Galve, Néstor Calvo, Coronado, Eugenio, Giménez-Marqués, Mónica, and Espallargas, Guillermo Mínguez
- Subjects
- *
LIGANDS (Chemistry) , *COORDINATION polymers synthesis , *IRON compounds , *SPIN crossover , *X-ray powder diffraction - Abstract
In this work, we present a family of FeII coordination polymers of general formula [Fe(btzx)3-3x(btix)3x](ClO4)2 with interesting spin-crossover properties. These coordination polymers have been synthesized using chemical mixtures of two different but closely related ligands, 1,4-bis(tetrazol-1-ylmethyl)benzene (btzx) and 1,4-bis(triazol-1-ylmethyl)benzene (btix), and the effect of a gradual substitution of the ligand in the spin transition temperature has been investigated. Several chemical mixtures have been structurally characterized by X-ray powder diffraction indicating a clear critical amount in the composition of the mixture after which mixed phases rather than a single phase comprising mixed components are observed. Importandy, this approach causes the appearance of a new transition at lower temperatures that is not present in the pure [Fe(L)3](ClO4)2 systems. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF