With respect to the first entry from Jan. 2010, intensities were corrected. The data have been summarized in
(1) B. J. Drouin, S. Yu, C. E. Miller, H. S. P. Müller, F. Lewen, S. Brünken, and H. Habara, 2010, J. Quant. Spectrosc. Radiat. Transfer 111, 1167.
This work provides new data between 0.62 and 1.23 THz. Additional data were taken from
(2) M. Mizushima and S. Yamamoto, 1991, J. Mol. Spectrosc. 148, 447;
from
(3) R. L. Crownover, F. C. De Lucia, and E. Herbst, 1990, Astrophys. J. 349, L29;
from
(5) W. Steinbach and W. Gordy, 1975, Phys. Rev. A 11, 729;
and from
(6) T. Amano and E. Hirota, 1974, J. Mol. Spectrosc. 53, 346.
When the same transition was measured by different groups, all measurements were included in the fit with their respective experimental accuracies. The last, most accurate line has been merged.
Predictions should be viewed with caution if the calculated uncertainties exceed 0.2 MHz.
Intensities were calculated based on the main g value obtained for the main isotopolog, see e032506.cat. Intensities at low values of N are not affected, but those at higher N are now calculated to be much weaker.