New External Calibration Curves (ECCs) for the Estimation of Molecular Weights in Various Common NMR Solvents

New external calibration curves (ECCs) for the estimation of aggregation states of small molecules in solution by DOSY NMR spectroscopy for a range of different common NMR solvents ([D-6]DMSO, C6D12, C6D6, CDCl3, and CD2Cl2) are introduced and applied. ECCs are of avail to estimate molecular weights (MWs) from diffusion coefficients of previously unknown aggregates. This enables a straightforward and elaborate examination of (de)aggregation phenomena in solution.