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A magnetic iron(III) switch with controlled and adjustable thermal response for solution processing
Gandolfi, Claudio; Morgan, Grace G.; Albrecht, Martin
Spin crossover requires cooperative behaviour 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) sal2trien 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 behaviour relies on combining function (spin switching) and structure (supramolecular assembly) through covalent interactions in a single molecular building block. European Research Council Other funder Alfred Werner Foundation Swiss National Science Foundation ERA-net Chemistry NB Embargo until Feb 2013 -- JG; ke, sp, jo, is, li - TS 08.05.12
Keyword(s): Iron; Spin crossover; Tunability; Self-assembly; Iron--Magnetic properties; Metal complexes; Self-assembly (Chemistry)
Publication Date:
2012
Type: Journal article
Peer-Reviewed: Unknown
Language(s): English
Institution: University College Dublin
Publisher(s): RSC
File Format(s): other; application/pdf
First Indexed: 2013-02-27 05:31:28 Last Updated: 2018-10-11 15:54:16