Complete assignment of 1H. and 13C NMR spectra of poly(N-vinylcarbazole)

A complete and unambiguous assignment of the proton and carbon-13 spectra of poly(N-vinylcarbazole) using a number of modern gradient two-dimensional nuclear magnetic resonance (NMR) spectra was conducted at 11.74 T magnetic field. The gradients considerably improved the 2D NMR experiments by: (a) suppressing the unwanted magnetization, thus avoiding add/subtract errors in phase-cycling techniques; (b) shortening the measuring time leading to a better signal-to-noise ratio; and (c) yielding pure absorption spectra resulting in a better resolution of signals in crowded spectral regions.