Supplementary Figure 1: UV-Vis absorption spectra of polyynes from 2-yne to 6-yne
From: Supermultiplexed optical imaging and barcoding with engineered polyynes
The spectra are vertically offset for clarity. The longest wavelength of absorption red shifts ~35 nm with every additional triple bond. Three sets of peaks are observed at the highest wavelengths as vibrational fine structures, indicating strong vibronic coupling.
