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Study of 9-R-9,10-dimethylphenanthrenonium ions by the method of nuclear magnetic resonance of carbon

  • Physical Chemistry
  • Published:
Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Conclusions

  1. 1.

    The13C NMR spectra of six 9-R-9,10-dimethylphenanthrenonium ions have been obtained for suppression of the {1H}-13C spin-spin bonding.

  2. 2.

    The chemical shifts of the C10 atom (the carbonium center) of these ions are slightly sensitive to change in the substituent R.

  3. 3.

    The value of the positive π charge at the carbonium center of the 9,9,10-trimethylphenanthrenonium ion (0.56 charge unit) has been estimated from the13C NMR spectra.

  4. 4.

    The equilibrium concentration of ions of the phenonium type, which may participate as intermediate compounds in the degenerate regrouping of 9-X-phenyl-9,10-dimethylphenanthrenonium ions, does not exceed 3%

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Authors and Affiliations

  1. Nvosibirsk Institute of Organic Chemistry, Siberian Division, Academy of Sciences of the USSR, USSR

    A. I. Rezvukhin, D. V. Korchagina & V. G. Shubin

Authors
  1. A. I. Rezvukhin
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  2. D. V. Korchagina
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  3. V. G. Shubin
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Additional information

See previous results in [1].

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 6, pp. 1253–1258, June, 1976.

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Rezvukhin, A.I., Korchagina, D.V. & Shubin, V.G. Study of 9-R-9,10-dimethylphenanthrenonium ions by the method of nuclear magnetic resonance of carbon. Russ Chem Bull 25, 1213–1217 (1976). https://doi.org/10.1007/BF00928053

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  • DOI: https://doi.org/10.1007/BF00928053

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