Table 1 Ten of the largest subgroups by the direct environment of the phosphorus atom found in the Ilm-NMR-P31 database and their frequency, the median number of carbon atoms, the median molecular weight, the median ³¹P NMR shift as well as the standard deviation of the ³¹P shifts per subgroup

From: Ilm-NMR-P31: an open-access ³¹P nuclear magnetic resonance database and data-driven prediction of ³¹P NMR shifts