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Challenges in Engineering Spin Crossover: Structures and Magnetic Properties of Six Alcohol Solvates of Iron(II) Tris(2-picolylamine) Dichloride


  • This work was supported by the Swiss National Science Foundation and a travel grant from the Norwegian Research Council. We thank the staff of the Swiss Norwegian Beam Lines (SNBL) at the European Synchrotron Research Facility for their support.


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So similar yet so different: The crystal structures of six alcohol solvates of the title compound (see formula) are found to be very similar at 200 K. In contrast, their spin-transition behavior and their structural phase transitions are quite different. Implications of these observations for crystal engineering are discussed.