Abstract
Spiropyrans of the indoline series were studied by differential pulse voltammetry in DMSO solutions. The experimental data obtained were supported by quantum-chemical calculations performed to examine the structural features and thermodynamic stability of a series of spiro-pyrans. The calculations revealed a correlation between the peak potential (E p) of spiropyrans and the energy of the lowest unoccupied π orbital. Procedures were developed for identification and quantitative determination of all the spiropyrans in DMSO on a mercury dropping electrode in the concentration range from 1 × 10−7 to 1 × 10−6 M.
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Original Russian Text © V.M. Krikun, L.P. Sadimenko, E.N. Voloshina, N.A. Voloshin, M.E. Kletskii, 2008, published in Zhurnal Obshchei Khimii, 2008, Vol. 78, No. 4, pp. 680–686.
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Krikun, V.M., Sadimenko, L.P., Voloshina, E.N. et al. A study of spiro[indoline-pyridobenzopyrans] by differential pulse voltammetry on a dropping mercury electrode and quantum chemistry. Russ J Gen Chem 78, 662–667 (2008). https://doi.org/10.1134/S1070363208040245
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DOI: https://doi.org/10.1134/S1070363208040245