Spin crossover solids studied by X-ray diffraction.
Swiss-Norwegian Beam Lines at the ESRF, BP 220, F-38043, Grenoble CEDEX, France
Tue, Jun. 10th 2008, 14:30
LLB - Bât 563 p15 (Grande Salle), CEA-Saclay
The crystal structures of many spin crossover solids have intricate architectures consisting of spin-active complexes as well as spin-inactive components, such as counterions and solvent molecules. The latter components undergo temperature induced ordering, in parallel with the spin conversion.
This phenomenon has been observed experimentally by X-ray diffraction for compounds with disordered solvent molecules, counterions, and ligands. The structural data illustrating this phenomenon will be shown together with discussion of theoretical approaches mapping various ordering scenarios.