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Infrared spectra, hydrogen bonds, and conformations of 2-substituted oxa-3-phospholanol derivatives

  • R. R. Shagidullin
  • E. P. Trutneva
  • F. S. Mukhametov
Brief Communications
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Conclusions

  1. 1.

    The H bonds of 13 oxa-3-phospholanol derivatives were studied. The molecules of the cis isomers are connected via the H bonds of\(\begin{array}{*{20}c} \backslash \\ --- \\ / \\ \end{array} P--O...H--O\) into cyclic dimers in all of the states. The character of the self-association of the molecules of the trans form changes during the phase transition crystal-solution from polymeric to the open dimers.

     
  2. 2.

    The monomeric molecules of the cis derivatives of oxa-3-phospholanol exist in dilute CCl4 solutions as conformers with the intramolecular H bond\(\begin{array}{*{20}c} \backslash \\ --- \\ / \\ \end{array} P = O...H--O--C\), while in the molecules of the trans isomers either weak intramolecular interaction of the OH group with the X substituent is observed, or in general it is absent.

     
  3. 3.

    The criteria for identifying the paired cis-trans isomers were found.

     

Keywords

Hydrogen Phase Transition Hydrogen Bond Infrared Spectrum CCl4 
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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Copyright information

© Plenum Publishing Corporation 1978

Authors and Affiliations

  • R. R. Shagidullin
    • 1
  • E. P. Trutneva
    • 1
  • F. S. Mukhametov
    • 1
  1. 1.A. E. Arbuzov Institute of Organic and Physical ChemistryKazan Branch of the Academy of Sciences of the USSRUSSR

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