Molecules with many spin-crossover sites could be used as multistepped molecular switches. The CNbridged molecular square [Fe II 4 (m-CN) 4 (bpy) 4 (tpa) 4 ](PF 6 ) 4 (bpy = 2,2'-bipyridine; tpa = tris(2-pyridylmethyl)amine), a Prussian blue analogue, undergoes thermally induced, two-step spin conversion. For more information, see the Communication by H. Oshio and co-workers on the following pages.
Spin im Quadrat: Bei einem cyanidverbrückten molekularen Quadrat (siehe Bild) wurde ein thermisch induzierter zweistufiger Spin‐Crossover beobachtet. Moleküle mit mehr als einem Spin‐Crossover‐Zentrum eignen sich als Baueinheiten für molekulare Schalter mit mehreren Zuständen.
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