Table 6.
Changes of molecular parameters for the v29 = v30 = 1 vibrational states of g-n-PrCN obtained from our latest fit using Watson’s S reduction.
| Parameters | v30 = 1 | v29 = 1 | v29 = v30 = 1 |
|---|---|---|---|
| (MHz) | ΔX | ΔX | ΔΔX |
| A | 58.6429 | 23.7238 | −1.50985(23) |
| B | −7.93825 | 2.49329 | −0.299830(42) |
| C | −5.17388 | 0.43322 | −0.000337(32) |
| DK × 103 | 4.9987 | −0.8467 | 0.0157(7) |
| DJK × 103 | −0.6552 | 0.15941 | −0.01558(21) |
| DJ × 106 | 7.562 | −20.188 | −2.532(12) |
| d1 × 106 | −8.065 | 2.589 | 1.601(6) |
| d2 × 106 | −3.600 | −0.984 | 0.7423(22) |
| HK × 106 | 0.3743 | −0.0773 | |
| HKJ × 109 | −99.2 | 41.48 | 2.75(60) |
| HJK × 109 | 5.47 | −2.35 | |
| HJ × 109 | −0.0729 | −0.2729 | 0.00914(98) |
| h1 × 1012 | −105.8 | −103.7 | |
| h2 × 1012 | −21.98 | −2.05 | |
| h3 × 1012 | 13.498 | 1.305 | |
| LJK × 1012 | −1.015 | ||
| LJJK × 1015 | 20.4 | ||
| LJ × 1015 | −5.299 | ||
| l1 × 1015 | −2.686 | ||
| χaa | −0.064 | ||
| WRMS | 1.24 | ||
| Highest frequency | 484435 | ||
| Max J″ | 89 | ||
| Max K″a | 20 | ||
| Transitions | 1888 | ||
Notes. The molecular parameters are expressed as Xv29 = v30 = 1 = Xv = 0 + ΔXv30 = 1 + ΔXv29 = 1 + ΔΔX. Numbers in parantheses represent the uncertainty compared to the last quoted digit. Parameters without uncertainties were kept fixed in the fit. The parameters determined in this work are based on the up-dated ground-state parameters and the changes for v30 = 1 and v29 = 1 already determined in this work.
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