A near infrared line list for NH3: Analysis of a Kitt Peak spectrum after 35 years

作者：Barton Emma J; Yurchenko Sergei N; Tennyson Jonathan^*; Beguier Serge; Campargue Alain

来源：Journal of Molecular Spectroscopy, 2016, 325: 7-12.

DOI：10.1016/j.jms.2016.05.001

• Room temperature
• Ammonia
• Absorption intensities
• FTIR spectroscopy
• Experimental energies
• BYTe
• Line assignments

A Fourier Transform (FT) absorption spectrum of room temperature NH3 in the region 7400-8640 cm(-1) is analysed using a variational line list and ground state energies determined using the MARVEL procedure. The spectrum was measured by Dr. Catherine de Bergh in 1980 and is available from the Kitt Peak data center. The centers and intensities of 8468 ammonia lines were retrieved using a multiline fitting procedure. 2474 lines are assigned to 21 bands providing 1692 experimental energies in the range 75009200 cm(-1). The spectrum was assigned by the joint use of the BYTe variational line list and combination differences. The assignments and experimental energies presented in this work are the first for ammonia in the region 7400-8640 cm(-1), considerably extending the range of known vibrational-excited states.

• 出版日期2016-7