Table 2
Unblended or slightly blended transitions of the molecules studied in this work.
| Molecule | Frequency | Transition | log I | Eup | τ |
|---|---|---|---|---|---|
| (MHz) | (J, Ka, Kc) | (nm2 MHz) | (K) | ||
| t-HCOOH | 86546.1891 | 4,1,4–3,1,3 | −4.3888 | 13.57 | 0.12±0.08 |
| t-HCOOH | 89579.1785 | 4,0,4–3,0,3 | −4.3269 | 10.77 | 0.13 ± 0.09 |
| t-HCOOH | 89861.4843 | 4,2,3–3,2,2 | −4.4673 | 23.51 | 0.09 ± 0.06 |
| t-HCOOH | 90164.6296 | 4,2,2–3,2,1 | −4.4644 | 23.53 | 0.09 ± 0.06 |
| t-HCOOH | 93098.3627 | 4,1,3–3,1,2 | −4.3263 | 14.36 | 0.13 ± 0.09 |
| t-HCOOH | 108126.7202 | 5,1,5–4,1,4 | −4.095 | 18.76 | 0.18 ± 0.12 |
| t-HCOOH | 111746.7845 | 5,0,5–4,0,4 | −4.0451 | 16.13 | 0.20 ± 0.14 |
| t-HCOOH | 112287.1447 | 5,2,4–4,2,3 | −4.1347 | 28.90 | 0.16 ± 0.10 |
| t-HCOOH | 112432.2921 | 5,4,2–4,4,1 | −4.5567 | 67.06 | 0.05 ± 0.03 |
| t-HCOOH | 112432.3191 | 5,4,1–4,4,0 | −4.5567 | 67.06 | 0.05 ± 0.03 |
| t-HCOOH | 112459.6214 | 5,3,3–4,3,2 | −4.2744 | 44.81 | 0.11 ± 0.07 |
| t-HCOOH | 112467.0074 | 5,3,2–4,3,1 | −4.2744 | 44.81 | 0.11 ± 0.07 |
| t-HCOOH | 112891.4435 | 5,2,3–4,2,2 | −4.1301 | 28.95 | 0.16 ± 0.10 |
| t-HC(O)SH | 93208.624 | 8,0,8–7,0,7 | −4.3707 | 20.17 | 0.016 ± 0.003 |
| t-HC(O)SH | 93589.887 | 8,5,4–7,5,3 | −4.6797 | 87.60 | 0.0065 ± 0.0011 |
| t-HC(O)SH | 93589.887 | 8,5,3–7,5,2 | −4.6797 | 87.60 | 0.0065 ± 0.0011 |
| t-HC(O)SH | 93592.509 | 8,4,5–7,4,4 | −4.5544 | 63.35 | 0.0093 ± 0.0016 |
| t-HC(O)SH | 93592.509 | 8,4,4–7,4,3 | −4.5544 | 63.35 | 0.0093 ± 0.0016 |
| t-HC(O)SH | 93592.808 | 8,6,2–7,6,1 | −4.8664 | 117.22 | 0.0038 ± 0.0007 |
| t-HC(O)SH | 93592.808 | 8,6,3–7,6,2 | −4.8664 | 117.22 | 0.0038 ± 0.0007 |
| t-HC(O)SH | 102631.9508 | 9,1,9–8,1,8 | −4.2512 | 27.34 | 0.019 ± 0.003 |
| t-HC(O)SH | 105315.909 | 9,3,7–8,3,6 | −4.3065 | 49.54 | 0.015 ± 0.003 |
| t-HC(O)SH | 105324.697 | 9,3,6–8,3,5 | −4.3065 | 49.54 | 0.015 ± 0.003 |
| t-HC(O)SH | 105663.246 | 9,2,7–8,2,6 | −4.2551 | 36.10 | 0.018 ± 0.003 |
| t-HC(O)SH | 107620.9874 | 9,1,8–8,1,7 | −4.2115 | 28.54 | 0.020 ± 0.003 |
| c-HC(O)SH | 84566.811 | 11,0,11–10,1,10 | −4.1819 | 36.99 | 0.0072 ± 0.0018 |
| c-HC(O)SH | 85979.209 | 13,1,12–13,0,13 | −3.9382 | 55.05 | 0.012 ± 0.003 |
| c-HC(O)SH | 91058.108 | 14,1,13–14,0,14 | −3.8857 | 63.09 | 0.012 ± 0.003 |
| c-HC(O)SH | 93801.341 | 8,3,5–7,3,4 | −4.2206 | 44.91 | 0.0058 ± 0.0015 |
| c-HC(O)SH | 94030.48 | 8,2,6–7,2,5 | −4.1609 | 31.24 | 0.0069 ± 0.0017 |
| c-HC(O)SH | 96658.0938 | 15,1,14–15,0,15 | −3.8353 | 71.69 | 0.012 ± 0.003 |
| c-HC(O)SH | 99993.1226 | 19,1,18–18,2,17 | −4.189 | 111.77 | 0.0047 ± 0.0012 |
| c-HC(O)SH | 107813.858 | 9,1,8–8,1,7 | −3.9641 | 28.63 | 0.010 ± 0.002 |
Notes. The first column indicates the molecule for which the transitions are listed. The second column shows the frequency of the rotational transition given in the third column. Log I is the base 10 logarithm of the integrated intensity at 300 K, Eup is the energy of the upper level and τ is the optical depth of the transition derived from the LTE fit, as described in Sect. 4.
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