Comparison of diffusivities data of streptocyanine dyes by electrochemical and NMR-DOSY methods

► Diffusivity data of streptocyanine dyes can be easily estimated by NMR-DOSY. ► Self and mutual diffusion coefficients are in good agreement for dilute solutes. ► Knowledge of D allows the number of exchanged electrons n to be determined electrochemically from limiting current.