Table A.1
Relevant transitions of HOOH in the (80–700 GHz) submillimeter region.
| Transition | Frequency | log(intensity) | Aul | Eup | Upper state | Spin | |
|---|---|---|---|---|---|---|---|
| rotational | tunneling (†) | at 300K | degeneracy | weight | |||
( ) |
τ′− τ″ | (MHz) | (nm2MHz) | (s−1) | (K) | gup = gI × gk | |
| 31,2−20,2 | 3–1 | *90 365.5097 | −4.2979 | 1.213 × 10−5 | 28.2 | 7 = 1 × 7 | 1 |
| 41,3−30,3 | 3–1 | *143 712.6282 | −3.3341 | 4.736 × 10−5 | 38.1 | 21 = 3 × 7 | 3 |
| 51,4−40,4 | 2–4 | 197 561.2819 | −3.4728 | 1.205 × 10−4 | 50.6 | 11 = 1 × 11 | 1 |
| 30,3−21,1 | 4–2 | *219 166.8600 | −3.3556 | 8.584 × 10−5 | 31.2 | 21 = 3 × 7 | 3 |
| 61,5−50,5 | 2–4 | *251 914.6794 | −2.7387 | 2.458 × 10−4 | 65.5 | 39 = 3 × 13 | 3 |
| 40,4−31,2 | 4–2 | 268 961.1700 | −3.4931 | 1.843 × 10−4 | 41.1 | 9 = 1 × 9 | 1 |
| 61,5−70,7 | 3–1 | 270 610.1000 | −2.7781 | 2.544 × 10−4 | 81.9 | 39 = 3 × 13 | 3 |
| 50,5−41,3 | 4–2 | *318 222.5200 | −2.7632 | 3.314 × 10−4 | 53.4 | 33 = 3 × 11 | 3 |
| 51,4−60,6 | 3–1 | *318 712.1000 | −3.1657 | 4.124 × 10−4 | 67.0 | 11 = 1 × 11 | 1 |
| 31,3−30,3 | 2–4 | 616 141.4500 | −1.9131 | 6.762 × 10−3 | 44.4 | 21 = 3 × 7 | 3 |
| 21,2−20,2 | 2–4 | 617 459.1800 | −2.5250 | 6.788 × 10−3 | 37.0 | 5 = 1 × 5 | 1 |
| 11,1−10,1 | 2–4 | 618 341.7600 | −2.2622 | 6.804 × 10−3 | 32.2 | 9 = 3 × 3 | 3 |
| 11,0−00,0 | 3–1 | 670 595.8200 | −2.8432 | 5.786 × 10−3 | 32.2 | 3 = 1 × 3 | 1 |
Notes. All values are taken from the JPL catalog; Pickett et al. (1998) (entry: 34 004 H2O2). Frequencies marked with an asterisk are transitions that have been observationally investigated. gI is the spin-statistical weight, and gk is the upper state spin-rotational degeneracy (2J+1). (†)Tunneling splitting component (Hunt et al. 1965).
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