Sodium hydroxide, 1Σ+
Species tag 040509
Date of EntryAug. 2009
ContributorH. S. P. Müller

The observed transitions were taken from
(1) E. F. Pearson and M. B. Trueblood, 1973, Astrophys. J. 179, L145;

(2) P. Kuipers, T. Törring, and A. Dymanus, 1976, Chem. Phys. 15, 457;

and from
(3) Y. Kawashima, R. D. Suenram, and E. Hirota, 1996, J. Mol. Spectrosc. 175, 99.
The predictions should be reliable up to 600 GHz.
At low values of J, 23Na hyperfine splitting is resolvable. Therefore, a separate prediction considering 23Na hyperfine splitting with J" ≤ 4 is available. Note: The partition function does not include the spin-multiplicities of 23Na ! Therefore, partition function values have to be multiplied by 4 when considering 23Na hyperfine splitting !
The dipole moment was taken from (3).

Lines Listed72
Frequency / GHz< 1775
Max. J72
log STR0-4.0
log STR1-4.0
Isotope Corr.-0.0
Egy / cm–10.0
 µa / D6.832
 µb / D 
 µc / D 
 A / MHz 
 B / MHz12567.06
 C / MHz 
detected in ISM/CSMno

Database maintained by Holger S. P. Müller and Sven Thorwirth, programming by D. Roth and F. Schloeder