A magnetic iron(III) switch with controlled and adjustable thermal response for solution processing

作者：Gandolfi Claudio; Morgan Grace G; Albrecht Martin^*

来源：Dalton Transactions, 2012, 41(13): 3726-3730.

DOI：10.1039/c2dt12037b

Spin crossover requires cooperative behavior of the metal centers in order to become useful for devices. While cooperativity is barely predictable in solids, we show here that solution processing and the covalent introduction of molecular recognition sites allows the spin crossover of iron(III) sal(2)trien complexes to be rationally tuned. A simple correlation between the number of molecular recognition sites and the spin crossover temperature enabled the fabrication of materials that are magnetically bistable at room temperature. The predictable behavior relies on combining spin switching) and structure (supramolecular assembly) through covalent interactions in a single molecular building block.

• 出版日期2012