Experimental IR spectra and theoretical spectral absorption curves of the practically important biologically active steroid phytohormones (22S,23S)-24-epibrassinolide, (22S,23S)-28-homobrassinolide, and homobrassinolide, which have similar chemical structures, were compared and analyzed to establish spectral and structural correlations of them. This enabled an evaluation of the influence of side-chain structural features on the formation of IR spectra and the establishment of connections between their structural differences and the observed changes in the IR spectra in the range 1500–950 cm–1.
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 88, No. 4, pp. 513–524, July–August, 2021.
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Andrianov, V.M., Korolevich, M.V. Calculation and Comparative Analysis of IR Spectra of a Number of Brassinolides with Different Side-Chain Structures. J Appl Spectrosc 88, 697–709 (2021). https://doi.org/10.1007/s10812-021-01227-y
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DOI: https://doi.org/10.1007/s10812-021-01227-y