# THE $\nu_{8}$ AND ($\nu_{2} + \nu_{9}$) BANDS OF CYCLOPROPANE UNDER HIGH RESOLUTION

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 Title: THE $\nu_{8}$ AND ($\nu_{2} + \nu_{9}$) BANDS OF CYCLOPROPANE UNDER HIGH RESOLUTION Creators: Withstandley, V. W.; McCubbin, T. K., Jr.; Polo, S. R. Issue Date: 1970 Publisher: Ohio State University Abstract: With sufficient resolution it is possible to observe and measure the separation of the Q branches near the center of the $\nu_{3}$ perpendicular band of cyclopropane at $3024 cm^{-1}$. The observed Q-branch spacing $is-0.62\pm0.03 cm^{-1}$, leading to a vlaue of $+0.14\pm 0.03$ for the Coriolis coupling coefficient. This value of $\zeta_{s}$ is in disagreement as to both sign and magnitude with a recent result obtained by matching computer-generated band contours to observed $spectra.^{1}$. We observe also a weak $\bot$ band having characteristic cyclopropane Q branches at $2934 cm^{-1}$. We assign it as ($\nu_{2}-\nu_{9}$), $e^{1}$ species. The Q-branch spacing is $-0.55 \pm 0.03$ $cm^{-1}$, leading to a value of $+0.07\pm 0.03$ for $\zeta_{(2+9)}$. $^{1}$J. L. Duncan, J. Mol. Spectrose, 25, 451 (1968). Description: Author Institution: Department of Physics, The Pennsylvania State University URI: http://hdl.handle.net/1811/8569 Other Identifiers: 1970-V-2