THE ROTATIONAL SPECTRUM OF AMINOETHANOL $(NH_{2}CH_{2}CH_{2}OH)$
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Date
2002
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Publisher
Ohio State University
Abstract
The rotational spectrum of aminoethanol $(NH_{2}CH_{2}CH_{2}OH)$ has been characterized in the $75 - 120$ GHz region using the 1-meter flow cell apparatus at the Jet Propulsion Laboratory. Previous studies of the rotational spectrum of aminoethanol in the $8 - 40$ GHz region probed the ground state to the $J = 8$ level and included determination of the dipole moment and rotational $constants.^{a}$ Fourth-order centrifugal distortion constants were subsequently determined from these $data.^{b}$ We present here extended measurements of the ground state transitions up to $J = 51$, as well as $\nu_{27}=1$ transitions up to $J = 50, \nu_{26}=1$ transitions up to $J = 35$, and $\nu_{25}=1$ transitions up to $J = 29$. Rotational transitions from the $\nu_{27}=2, \nu_{26}=2$, and $\nu_{25}=2$ states as well as three combination bands have also been assigned. Spectroscopic parameters, including standard rotational constants and fourth- and sixth-order centrifugal distortion constants, were determined using the SPFit/SPCat program suite.
Description
$^{a}$ Penn R. E. and Curl R. F. (1971) J. Chem. Phys. 53, 651 - 658. $^{b}$ Kaushik V. K. and Woods R. C. (1982) Z. Phys. Chem. Neue Fol. 132, 117 - 120.
Author Institution: Division of Chemistry, California Institute of Technology; California Institute of Technology, Jet Propulsion Laboratory, Microwave Millimeter and Submillimeter Spectroscopy Lab; Division of Geology and Planetary Science, California Institute of Technology
Author Institution: Division of Chemistry, California Institute of Technology; California Institute of Technology, Jet Propulsion Laboratory, Microwave Millimeter and Submillimeter Spectroscopy Lab; Division of Geology and Planetary Science, California Institute of Technology