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Spectiioscopic study of the mutual effect of atomic groups, connected through different types of bridges

  • P. P. Shorygin
  • B. V. Lopatin
Brief Communications
  • 14 Downloads

Conclusions

  1. 1.

    Among the compounds of type\(X - \begin{array}{*{20}c} { / / } \\ \setminus \\ \end{array} \begin{array}{*{20}c} {\_\_\_} \\ {\underline {\_\_\_} } \\ \end{array} \begin{array}{*{20}c} { \setminus \setminus } \\ / \\ \end{array} - M - \begin{array}{*{20}c} { / / } \\ \setminus \\ \end{array} \begin{array}{*{20}c} {\_\_\_} \\ {\underline {\_\_\_} } \\ \end{array} \begin{array}{*{20}c} { \setminus \setminus } \\ / \\ \end{array} - Y\), where the substituents X and Y axe adjacent to a system ofπ-bonds, it is possible to isolate the following types of intermediate links: interaction of X and Y is not observed in the spectra when M=CH2 or CH2-CH2, and it is slight when M=O, S, NH or NR. If the intermediate links are a system of conjugatedπ-bonds, then important interaction of the donor and acceptor groups is observed, exerting an effect on the frequencies (and, probably, on the rigidity of the bonds in X and in Y), on the dipole moments, on the optical parameters, etc. The mutual effect when the X and Y groups are of the same type is small.

     
  2. 2.

    The donor-acceptor properties of the groups can change under electronic excitation and dependon the vibrational coordinates. Besides this, these properties depend on the medium.

     

Keywords

Dipole Moment Mutual Effect Electronic Excitation Optical Parameter Important Interaction 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Literature cited

  1. 1.
    E. Lippert, Z. Electrochemie,61, 962 (1957).Google Scholar
  2. 2.
    P. P. Shorygin and B. V. Lopatin, Zh. Fiz. Khimii,39, 2878 (1965).Google Scholar
  3. 3.
    P. P. Shorygin, Zh. Fiz. Khimii,23, 873 (1949).Google Scholar

Copyright information

© Consultants Bureau 1968

Authors and Affiliations

  • P. P. Shorygin
    • 1
  • B. V. Lopatin
    • 1
  1. 1.N. D. Zelinskii Institute of Organic ChemistryAcademy of Sciences of the USSRUSSR

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