Fig. 2.
Majority-rules experiments to assess amplification of chirality for mixtures of R- and S-OPV in methylcyclohexane. For both high (200 μM, A) and low concentrations (10 μM, B), no chiral amplification is obtained after mixing the assemblies at 20 °C. Heating to 80 °C, well above the elongation temperature Te, and cooling at 1 °C/min to 20 °C yields only chiral amplification at 200 μM. (C) For a 10-μM OPV solution (ee = –0.3), chiral amplification is obtained only upon cooling at 0.1 °C/min, whereas cooling and heating at 1 °C/min result in a large hysteresis.