期刊
JOURNAL OF MOLECULAR SPECTROSCOPY
卷 225, 期 2, 页码 189-195出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jms.2004.02.026
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Pure rotational transitions of the (NH)-N-14 radical in the v = 0 level of the X(3)Sigma(-) ground state have been detected using tunable far-infrared radiation generated by third-order mixing of radiation from two CO2 lasers with that front a microwave Source. The NH radical was formed in a cooled dc electric discharge through ammonia gas in helium. The rotational transitions from N = 1-0 up to 5-4 inclusive were detected. The nuclear hyperfine splittings become progressively less well resolved as N increases. These measurements have been combined with previous, more accurate measurements of the N = 1-0 transition [Astron. Astrophys. 322 (1997) L1] to determine all improved set of molecular parameters for (NH)-N-14. (C) 2004 Elsevier Inc. All rights reserved.
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