Circularly polarised luminescence and circular dichroism of l- and d-oligopeptides with multiple pyrenes.

Among l- and d-oligopeptides with multiple pyrenes as pendants, the dipeptides with two and three pyrenes showed blue-coloured circularly polarised luminescence as high as |gem|≈ (0.86-1.1) × 10(-2) at around 450 nm, reflecting from exciton couplets of twisted pyrenes.