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ISSN 1998-9539

Accuracy of Determination of Self-Diffusion Coefficients in Studies of Porphyrin-Based Complexes by 2D DOSY

Ilya A. Khodov
G.A. Krestov Institute of Solution Chemistry, Russian Academy of Science, 153045 Ivanovo, Russia
Kazan Federal University, 420008 Kazan, Russia
DOI: 10.6060/mhc170200k
Macroheterocycles 2017 10(3) 313-316
Influence of chemical exchange processes on the accuracy of determination of self-diffusion complexes of porphyrin-nickel complexes was shown. A method of estimating the inaccuracy of the self-diffusion coefficients for an inverted porphyrin complex was proposed. The values obtained using two different approaches to recording DOSY spectra, STE and CPMG, were compared. Allowing for exchange was shown to be important for accurate diffusion measurements and correct interpretation of results obtained in studied of molecular-level processes.


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