Absorption spectra of ammonia near 1 mu m

0484202 - ÚFCH JH 2018 RIV GB eng J - Článek v odborném periodiku
Barton, E. J. - Polyansky, O. L. - Yurchenko, S. N. - Tennyson, J. - Civiš, Svatopluk - Ferus, Martin - Hargreaves, R. - Ovsyannikov, R. I. - Kyuberis, A. A. - Zobov, N. F. - Béguier, S. - Campargue, A.
Absorption spectra of ammonia near 1 mu m.
Journal of Quantitative Spectroscopy and Radiative Transfer. Roč. 203, DEC 2017 (2017), s. 392-397. ISSN 0022-4073. E-ISSN 1879-1352
GRANT EU: European Commission(XE) 267219 - EXOMOL
Grant ostatní: RFBR(RU) 16-32-00244
Institucionální podpora: RVO:61388955
Klíčová slova: room temperature * ammonia * absorption intensities * FTIR spectroscopy
Obor OECD: Physical chemistry
Impakt faktor: 2.600, rok: 2017

An ammonia absorption spectrum recorded at room temperature in the region 8800-10,400 cm(-1) is analysed using a variational line list, BYTe, and ground state energies determined using the MARVEL procedure. BYTe is used as a starting point to initialise assignments by combination differences and the method of branches. Assignments are presented for the region 9400-9850 cm(-1). 642 lines are assigned to 6 previously unobserved vibrational bands, (2 nu(1) + 2 nu(2)(4))(+/-), (2 nu(1) + nu(1)(3))(+/-) and (nu(1) + nu(1)(3) + 2 nu(2)(4))(+/-), leading to 428 new energy levels with 208 confirmed by combination differences. A recently calculated purely ab initio NH3 PES is also used to calculate rovibrational energy levels. Comparison with assigned levels shows better agreement between observed and calculated levels than for BYTe for higher vibrational bands. (C) 2017 Elsevier Ltd. All rights reserved.
Trvalý link: http://hdl.handle.net/11104/0279335