Electron diffraction by gases: The molecular structure of bicyclo[2.2.1]hepta‐2,5‐diene

Abstract
The structure of bicyclo[2.2.1]hepta‐2,5‐diene has been investigated by means of electron diffraction of its vapour. The results are compared with those of other electron diffraction and X‐ray investigations and with theoretical calculations. It appears that in this molecule the sp2‐sp3 and the sp3‐sp3 carbon‐carbon bonds are very nearly equal.