Carbon–carbon bond lengths in cyclopropylamine

Abstract
The natural abundance microwave spectra for the 1−13C and 2−13C species of cyclopropylamine were obtained and the rotational constants calculated. By combining these data with previously obtained rotational constants for the normal species, the C−C bond lengths were obtained. Comparison of these results with bond lengths for other saturated cyclopropyl compounds does not suggest a clear pattern for various substituents. (AIP)