Far-infrared laser magnetic resonance spectroscopic study of the nu(2) bending fundamental of the CCN radical in its (X)over-tilde(2)Pi(r) state

Citation
Md. Allen et al., Far-infrared laser magnetic resonance spectroscopic study of the nu(2) bending fundamental of the CCN radical in its (X)over-tilde(2)Pi(r) state, J MOL SPECT, 201(1), 2000, pp. 18-29
Citations number
39
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF MOLECULAR SPECTROSCOPY
ISSN journal
0022-2852 → ACNP
Volume
201
Issue
1
Year of publication
2000
Pages
18 - 29
Database
ISI
SICI code
0022-2852(200005)201:1<18:FLMRSS>2.0.ZU;2-M
Abstract
Bending vibration-rotation transitions between the (010) mu(2)Sigma(-) and (000) (II)-I-2, vibronic states of the CCN radical in its ground electronic stare have been observed using far-infrared laser magnetic resonance (FIR LMR) spectroscopy. Thirteen FIR laser lines were used to record 769 resonan ces. The LMR data, combined with previous data, were used to determine vibr ational, Renner-Teller, fine-structure, rotational, hyperfine, and molecula r g-factor parameters using a least-squares fitting routine. The model used was an NZ effective Hamiltonian modified to include the Renner-Teller effe ct explicitly in a (II)-I-2 electronic state. The band origin for the (010) mu(2)Sigma(-) - <-- (000) (X) over tilde(2)II, transition was determined t o be 179.598176 +/- 0.000067 cm(-1). The spin-orbit splitting in the ground state was refined and the complete set of N-14-hyperfine parameters determ ined for the first time.