Partial 1H NMR and DOSY spectra (400 MHz, 298 K, CD3NO2) of 2OMe, with four sets of imines and methoxy groups labeled. Left inset: the imine region of the HSQC spectrum. Right inset: two adjacent CuI vertices from the X-ray crystal structure illustrate the four magnetically distinct imines (1-4, magenta) and methoxy groups (1'-4', cyan), nitrogen atoms, blue; oxygen atoms, red.
