Journal or Book Title
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.
The Royal Society of Chemistry
Juetten, Mark J.; Buck, Alexander T.; and Winter, Arthur H., "A radical spin on viologen polymers: organic spin crossover materials in water" (2015). Chemistry Publications. 1043.