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The intensive development of nanodevices acting as two-state systems hasmotivated the search for nanoscale molecular structures whose long-termconformational dynamics are similar to the dynamics of bistable mechanicalsystems such as Euler arches and Duffing oscillators. Collective synchrony inbistable dynamics of molecular-sized systems has attracted immense attention asa potential pathway to amplify the output signals of molecular nanodevices.Recently, pyridin-furan oligomers of helical shape that are a few nanometers insize and exhibit bistable dynamics similar to a Duffing oscillator have beenidentified through molecular dynamics simulations. In this article, we presentthe case of dynamical synchronization of these bistable systems. We show thattwo pyridine-furan springs connected by a rigid oligomeric bridge spontaneouslysynchronize vibrations and stochastic resonance enhances the synchronizationeffect.

Spontaneous synchronization of two bistable pyridine-furan nanosprings connected by an oligomeric bridge