Abstract
The integral intensities of the skeletal vibrations of the aromatic rings of 12 aporphine alkaloids have been measured. It has been established that with an increase in the twisting of the C1-C11 bond (cos Q) caused by the different natures of the spatial interaction of the 1,11-substituents ΣA decreases.
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Additional information
Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 495–498, July–August, 1984.
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Kristallovich, É.L., Yagudaev, M.R. & Israilov, I.A. Integral intensities of the IR bands of the skeletal vibrations of the aromatic ring in the 1480–1630 cm−1 region and the UV spectra of the aporphine alkaloids. Chem Nat Compd 20, 467–469 (1984). https://doi.org/10.1007/BF00574335
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DOI: https://doi.org/10.1007/BF00574335