Quantitative lineshape analysis for 1D- and 2D-spectra of amorphous materials

NMR is quantitative, is an often stated feature in magnetic resonance. In 1H solid-state NMR the results from simple MAS experiments can be disappointing though. We present a model study which identifies and quantifies different sources of errors and a new strategy which gives reliable results even under low resolution conditions. A second aspect will be 2D deconvolution of the lineshapes of amorphous/glassy materials. We analyze the unexpected splittings in the 2D lineshape of many typical glasses with a new analytical fitting function. Based on these findings we suggest a structural model based on different subunits, which should also find their imprint in bulk properties.