| Popis: |
The infrared (3500–50 cm−1) and Raman spectra (3500-10 cm−1) have been recorded for cyclopropyldimethylborane in both the gaseous and solid states. Additionally, the Raman spectrum of the liquid was recorded and qualitative depolarization values were obtained. Only one conformation has been found in all three physical states and, on the basis of the polarized nature of the Raman band assigned as the BC2 antisymmetric stretch, this conformer is identified as being the bisected structure with Cs molecular symmetry. A complete vibrational assignment, except for the BC2 and two methyl torsional modes, is proposed based on the depolarization data, infrared gas phase band contours, and group frequencies. These results are compared to the corresponding data for several other organoboranes. |
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