Abstract
The determination of nanometer-scale distances in solution is an enormous challenge. In their Research Article (e202301465) Gebhard Haberhauer and co-workers demonstrate that distances in macrocycles can be measured using a molecular spring and 13C-NMR spectroscopy. The sensitivity of the method even allows the determination of thermoelasticity at the molecular level: One studied system expands at low temperatures and shrinks at high temperatures.
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