Gas phase detection of the unstable halofulminate BrCNO by millimeter wave spectroscopy

The millimeter wave spectrum of the unstable halofulminate BrCNO was observed in a low-pressure pyrolysis of Br 2CNOH. Ground-state rotational constants of 79 BrCNO and 81 BrCNO were determined to be 1739.930 07 (10) and 1726.961 86 (11) MHz, respectively. Least-squares fits of the bromine quadrupol...

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Bibliographic Details
Published in:Chemical physics letters 1998-03, Vol.285 (5), p.391-397
Main Authors: Gillies, C.W, Gillies, J.Z, Lichau, H, Winnewisser, B.P, Winnewisser, M
Format: Article
Language:English
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Summary:The millimeter wave spectrum of the unstable halofulminate BrCNO was observed in a low-pressure pyrolysis of Br 2CNOH. Ground-state rotational constants of 79 BrCNO and 81 BrCNO were determined to be 1739.930 07 (10) and 1726.961 86 (11) MHz, respectively. Least-squares fits of the bromine quadrupole hyperfine splittings gave χ values of 656.8 (88) and 551 (10) MHz for the ground states of 79 BrCNO and 81 BrCNO, respectively. The observed vibrational satellite pattern arising from the BrCN bending mode indicates that the molecule exhibits extremely quasilinear behavior, roughly analogous to that of OCCCO.
ISSN:0009-2614
1873-4448
DOI:10.1016/S0009-2614(98)00085-2