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The rotational spectrum of the NH+ radical in its X²∏ and a4∑- states

Hübers, H.-W. and Kenneth, M. E. and Hill, Ch. and Brown, J. M. (2009) The rotational spectrum of the NH+ radical in its X²∏ and a4∑- states. Journal of Chemical Physics, 131 (034311-1). American Institute of Physics (AIP). doi: 10.1063/1.3160964. ISSN 0021-9606.

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Transitions between the spin-rotational levels of the 14NH+ radical in the υ=0 levels of its X ²∏ and α 4Σ- states have been studied by the technique of laser magnetic resonance at far-infrared wavelength. The data have been combined with a previous zero-field measurement of the J=1½-½ transition frequencies at 1.01 THz to determine much improved set of molecular parameters for NH+ in the X ²∏ state; the major parameters for the α 4Σ- state also been determined. A full determination of the hyperfine parameters for both 14N and 1H nuclei has been achieved for the first time. Accurate predictions of the transition frequencies between the low-lying levels of the radical in the absence of a magnetic field have also been made, including lambda-doubling frequencies for use by radio astronomers.

Item URL in elib:https://elib.dlr.de/60377/
Document Type:Article
Title:The rotational spectrum of the NH+ radical in its X²∏ and a4∑- states
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Kenneth, M. E.Time and Frequency Division, NIST, Boulder, Colorado, USAUNSPECIFIED
Hill, Ch.Oxford University, Dept. of Chemistry, Oxford, UKUNSPECIFIED
Brown, J. M.Oxford University, Dept. of Chemistry, Oxford, UKUNSPECIFIED
Date:21 July 2009
Journal or Publication Title:Journal of Chemical Physics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Publisher:American Institute of Physics (AIP)
Keywords:Terahertz, molecular spectroscopy, lasermagnetic resonance
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben Extrasolare Planeten (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Extrasolar Planets and Atmospheres
Deposited By: Hübers, Dr. Heinz-Wilhelm
Deposited On:02 Nov 2009 10:15
Last Modified:08 Mar 2018 18:42

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