CONFORMATIONAL ANALYSIS OF ALLYLIRONTRICARBONYLBROMIDE FROM THE ROTATIONAL SPECTRUM
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Date
1999
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Publisher
Ohio State University
Abstract
Microwave spectra of two structural isomers of allylirontricarbonylbromide were recorded using Fourier transform microwave spectroscopy. Pure rotational transitions for both `a' and `c' type dipole moments were measured for the `endo' isomer, whereas `a' and `b' type dipole moments were measured for the `syn' isomer. Condensed, near symmetric top spectra were obtained for all `a' type transitions, but the `b' and `c' type transitions were spread throughout the spectrum. Quadrupole coupling due to the $^{79}Br$ and $^{81}Br$ nuclei was observed. Comparison of the quadrupole coupling tensors of the isomers reveals greater anisotropy in the electric field gradient near the Br nucleus in the `syn' isomer. The present data allows a partial structure determination and comparison of the properties of the two isomers.
Description
Author Institution: Department of Chemistry, University of Arizona