Citation Classics -The crystal structure of melamine

The crystal structure of melamine was investigated by X-ray diffraction. A new method for refining atomic coordinates, based upon least-squares adjustment, was developed and used to find the positions of the atoms. The carbon-nitrogen distances in the cyanuricring were found to be equal well within experimental error. [The SCI indicates that the paper was cited 637 times in the period 1961-1977.]