Abstract
DURING the last two years, a practical method has been evolved for obtaining good photographs of the diffraction of 30–55 kv. electrons by vapours. I now get satisfactory results with any substance the vapour pressure of which exceeds 10 cm. of mercury at 750° C. With the aid of the apparatus now set up, measurements of the electron diffraction of any known stable organic compounds can be made, and the investigation of many interesting structural problems arising in inorganic chemistry is also rendered feasible. A number of preliminary photographs have been taken of members of the following series and of certain other substances: Polyhalogen derivatives of methane and ethane; aromatic hydrocarbons and some of their isomeric dihalogen compounds; polymethylene dibromides from butane and decane; and volatile halides of the elements and of cyanogen.
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DE LASZLO, H. Electron Diffraction by Vapours. Nature 131, 803 (1933). https://doi.org/10.1038/131803a0
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DOI: https://doi.org/10.1038/131803a0
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