Fig. 4: Aggregated structure of UPy with various end groups.
From: Non-traditional fluorescence in quadruple hydrogen bonded supramolecular polymers
a Molecular structure of UPy-DHDI and UPy-DHI (inset photograph of samples irradiated with a 365 nm UV lamp). b XRD spectra of the above samples. c WAXS spectra of the above samples. d, e Solid-state NMR two-dimensional DQ/SQ correlation spectra of the above two samples. The pulse sequence for this experiment is shown in Supplementary Fig. 15.
