Journal ArticleDOI
Centrifugal Distortion Parameters of Fulminic Acid, HCNO, from the Millimeter-Wave Rotational Spectra
TLDR
In this article, a millimeter-wave spectrometer has been employed for precise measurements of the millimeter wave rotational spectrum of HCNO, where the ground state and the first excited state of v4 and of v5 were measured.Abstract:
Abstract A newly designed millimeter-wave spectrometer has been employed for precise measurements of the millimeter-wave rotational spectrum of HCNO. Absorptions in several excited vibrational states as well as the ground state could be measured. The present paper presents the observed frequen cies and molecular constants obtained for the ground state and the first excited state of v4 and of v5, the vibrational bending modesread more
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2018 Census of Interstellar, Circumstellar, Extragalactic, Protoplanetary Disk, and Exoplanetary Molecules
TL;DR: A detailed summary of the first detection of each molecular species, including the observational facility, wavelength range, transitions, and enabling laboratory spectroscopic work, as well as listing tentative and disputed detections are provided in this paper.
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The composition of ices in comet C/1995 O1 (Hale-Bopp) from radio spectroscopy - Further results and upper limits on undetected species
TL;DR: A review of radio spectroscopic observations of comets and further analysis of their results is presented in this article, where Bockelee-Morvan et al. present a spectral survey conducted at radio wavelengths in comet Hale-Bopp with the CSO, the IRAM 30-m telescope and Plateau de Bure interferometer.
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Least-Squares Mass-Dependence Molecular Structures
TL;DR: The use of explicit mathematical models of is studied here as a means of determining near-equilibrium molecular structures from the zero-point moments of inertia of a range of isotopomers, and it is found that models with more than two parameters per axis generally give strongly correlated fits for the number of isotops typically available.
Journal ArticleDOI
Discovery of Fulminic Acid, HCNO, in Dark Clouds
TL;DR: In this paper, the first detection in space of fulminic acid, HCNO, was reported in three starless cores, B1, L1544, and L183, and in the low-mass star-forming region L1527 with a measured abundance ratio of HNCO/HCNO between 40 and 70.
Journal ArticleDOI
HCNO as a semirigid bender
TL;DR: In this article, the authors used the semirigid bender Hamiltonian to fit the rotation-vibration energy level separations in the fulminic acid (HCNO) molecule and concluded that the equilibrium structure of HCNO is linear but that excitation of the ν 1 or ν 2 stretching vibrations gives rise to an effective HCN bending potential function having its minimum at a nonlinear configuration.