Letter | Published:

The Straight Chain- and the Many Membered CH2 Ring-Molecule

Naturevolume 135page994 (1935) | Download Citation



THE heats of combustion of a CH2 group are the same in a normal and in the cyclo molecule, except the first members of the two series. Almost the same holds for the refractivities if the very small differences in the cyclo series are disregarded. From these two facts it must be concluded that the carbon-carbon and the carbon-hydrogen distances are the same in both series, and that the whole electronic configuration of an individual CH2 group is nearly identical in both structures.


  1. 1

    Helvet. Chim. Acta, 16, 155; 1933.

  2. 2

    Proc. Roy. Soc., A, 127, 417; 1930.

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  1. Davy Faraday Laboratory, Royal Institution, W.1

    • A. MÜLLER


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