Electron diffraction study of gaseous dimethylamine and trimethylamine

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Abstract
The molecular structures of dimethylamine and trimethylamine in the gas phase have been determined accurately by electron diffraction. The C—N bond lengths in the two molecules are equal (1.455 Å; reproducibility 0.002 Å). This value is 0.010 Å less than that obtained by Bartell in methylamine. The C—N—C angles are 111.8 and 110.6°, respectively (reproducibilities 0.6°).