Concerning the nearly identical properties of the (S)-/(R)-enantiomers, (S)-PCNCP and (S)-PCNTPA are selected as representative examples for property investigation. (S)-PCNCP and (S)-PCNTPA exhibit high decomposition temperatures of 468 and 483 o C, respectively, indicative of robust thermal stability. A high glass-transition temperature of 180 o C is observed for (S)-PCNTPA, implying its good morphological stability (Supplementary Fig. ). Moreover, they display reversible oxidation processes in cyclic voltammetry experiment (Supplementary Fig. ). The energy levels of the highest occupied molecular orbitals (HOMOs) are calculated as -5.63 and -5.28 eV for (S)-PCNCP and (S)-PCNTPA, respectively, from the onset potentials of oxidation waves. The optical energy gaps are calculated as 3.52 and 3.17 eV for (S)-PCNCP and (S)-PCNTPA, respectively, from the onsets of UV-vis absorption spectra. In consequence, the energy levels of the lowest unoccupied molecular orbitals (LUMOs) are calculated as -2.11 and -2.11 eV for (S)-PCNCP and (S)-PCNTPA, respectively.