Abstract
The vibration frequencies of some phosphate esters have been measured in the 900–1400 cm−1 region. Only some show a correlation between the P=O vibration frequencies and the Taft polar constants. It is concluded that the polar effect of the substituents is the main factor affecting the P=O vibration frequencies, but not the only one.
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Shvedov, V.P., Orlov, Y.F. & Shevyakov, A.M. Spectra of phosphate esters in the 900–1400 cm−1 region. J Appl Spectrosc 2, 36–38 (1965). https://doi.org/10.1007/BF00658082
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DOI: https://doi.org/10.1007/BF00658082