Supramolecular Modulation of Spin Crossover in an Fe(II) Dinuclear Triple Helicate
Alexander R Craze1, Hikaru Zenno2, Michael C Pfrunder3,4,5
1School of Science, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia.
Abstract:
A spin-crossover (SCO) active dinuclear Fe(II) triple helicate of the form [Fe2L3]4+ was combined with additional supramolecular components in order to manipulate the interhelical separation and steric congestion and to study the magneto-structural effects on the ensuing composite materials. A more separated array of SCO units produced more extensive spin-transitions, while a tightly arranged lattice environment stabilized the low-spin state. This study highlights the important interplay between crystal packing, intermolecualr interactions, and the magentic behavior of SCO materials.
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