Letter | Published:

A General Equation for Induced Polarity

Nature volume 134, pages 178179 (04 August 1934) | Download Citation

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Abstract

ORGANIC reactions, of which the speed can be affected by the presence of a polar substituent in a molecule, have been classified into two groups1, for each of which Nathan and Watson2 have suggested, from analysis of experimental data, an empirical equation to correlate the energy of activation with the dipole moment of the polar substituent. For Class A reactions, accelerated by electron access to the point of attack, they suggest E = E0 C( 2), and for Class B reactions, accelerated by electron recession from the point of attack, they suggest E = E0 + C( + 2).

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References

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    and , J. Chem. Soc., 1217; 1928.

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    and , J. Chem. Soc., 1248; 1933. NATURE, 133, 380 March 10, 1934.

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    , J. Chem. Soc., 1551; 1933.

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    , NATURE, 133, 946, June 23, 1934.

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Affiliations

  1. University Science Laboratories, Durham. June 26.

    • W. A. WATERS

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DOI

https://doi.org/10.1038/134178b0

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