MICROWAVE SPECTRUM, CONFORMATION AND DIPOLE MOMENT OF TRANS-DIFLUOROETHYLENE OZONIDE(FCHOOFCHO)
Loading...
Date
1985
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
The rotational spectra of five isotopic species of trans-difluoroethylene ozonide (trans-3,5-difluoro-1,2,4-trioxolane) were assigned in the region 18.0 - 40.0 GHz. These included the parent species, both single- and double-substituted deuterium species, the double $^{18}D_{P}$ and triple $^{18}O$ species. The spectrum consisted of b-type transitions with a 10:6 intensity alternation consistent with a $C_{2}$ axis of symmetry. The ground state rotational constants for the normal species are: A = 6093.333(3) MHz, B = 2287.188(1) MHz, and C = 2001.709(1) MHz. The electric dipole moment was determined from Stark effect measurements to be: $\mu_{b} = 0.994(5)$ Debye. These results indicate an $O_{p}-O_{p}$ twist conformation with diaxial fluorine substituents. The following selected bond lengths (\AA) and angles (deg) were obtained using both Kraitchman calculations and the method of predicate observables (diagnostic least-squares). [FIGURE].
Description
Author Institution: Department of Chemistry, University of Michigan; Department of Chemistry, University of Michigan; Department of Chemistry, University of Michigan