Table 2. Rotational and distortion constants of CH3CH2NHCHO.
| Molecular constants |
Values MHz |
Previous worka MHz |
|---|---|---|
| A | 9904.836765 (905) | 9904.8373 (6) |
| B | 3521.099684 (209) | 3521.0995 (2) |
| C | 2984.979533 (186) | 2984.9808 (2) |
| ΔJ | 9.376237 (349) ×10–03 | 9.3859 (53) ×10–03 |
| ΔJK | -6.297555 (282) ×10–02 | -6.2957 (31) ×10–02 |
| ΔK | 1.659087 (181) ×10–01 | 1.6587 (15) ×10–01 |
| δJ | 3.223793 (197) ×10–03 | 3.2310 (14) ×10–03 |
| δK | 1.044634 (260) ×10–02 | 1.0116 (63) ×10–02 |
| ΦJ | -2.57722 (178) ×10–07 | |
| ΦJK | 3.47486 (457) ×10–06 | |
| ΦKJ | -1.82342 (324) ×10–05 | |
| ΦK | 3.7193 (109) ×10–05 | |
| ϕJ | -1.06085 (209) ×10–07 | |
| ϕJK | -3.6172 (370) ×10–07 | |
| ϕK | 3.8330 (475) ×10–06 | |
| LJJK | 2.3014 (161) ×10–10 | |
| LKKJ | 4.201 (160) ×10–09 | |
| lJ | -5.6239 (906) ×10–12 | |
| lK | 1.1741 (316) ×10–08 | |
| PJJK | 1.5318 (177) ×10–13 | |
| PJK | -8.165 (138) ×10–13 | |
| pJ | -4.848 (206) ×10–16 | |
| pJJK | -3.732 (121) ×10–14 | |
| pJK | 2.0599 (248) ×10–12 |
Table Comments:
All constants are in MHz.
Numbers in parentheses represent the derived uncertainty (1 σ) of the parameter in units of the last digit.
The number of independent lines is 616 of which 64 correspond to unresolved doblets.
a
Previous constants derived by Ohba et al. (2005)