Liv Fernholt, Svein Samdal, Ragnhild Seip
1981
Citations
0
Influential Citations
27
Citations
Journal
Journal of Molecular Structure
Abstract
Abstract Tetramethylurea and tetramethylthiourea have been studied by electron-diffraction in the gas phase. A pyramidal configuration about the N-atoms is found for both molecules with pyramid heights of 27.2 and 11.3 pm for tetramethylurea and tetramethylthiourea, respectively. The most important structural parameters are: (see Fig. 1 for numbering of the atoms and the definition of φ 1 and φ 2 ). Values in parentheses are one standard deviation where correlation among data and uncertainty in the electron wavelength have been included.