A radical spin on viologen polymers: organic spin crossover materials in water
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A polymer containing viologen radical cation monomer units is shown to reversibly switch between paramagnetic and diamagnetic states via non-covalent host–guest interactions or temperature control in water. Cycling between diamagnetic and paramagnetic forms is accompanied by changes in optical and magnetic properties.
This is a manuscript of an article published as Juetten, Mark J., Alexander T. Buck, and Arthur H. Winter. "A radical spin on viologen polymers: organic spin crossover materials in water." Chemical Communications 51, no. 25 (2015): 5516-5519. doi: 10.1039/C4CC07119K. Posted with permission.