Table 1: Laboratory measurements, calculated frequencies and line strengths for methyformate transitions in the first torsionally excited state used in the present detection.
$J\hbox{$^\prime$ }$ $K_{\rm a}\hbox{$^\prime$ }$ $K_{\rm c}\hbox{$^\prime$ }$ $P\hbox{$^\prime$ }$ $J\hbox{$^{\prime\prime}$ }$ $K_{\rm a}$ $^{\prime \prime }$ $K_{\rm c}$ $^{\prime \prime }$ P $^{\prime \prime }$ Obs. Freq. Calc. Freq. Calc. Unc Obs.-Calc. $S{\mu}^2$ ${E_{\rm l}}$
Upper statea Lower statea (MHz)b (MHz)c (kHz)c (MHz)c (D2) (cm-1)d
7 4 4 - 6 4 3 - 85 327.104 85 327.085 11 0.019 12.483 146.8606
7 4 3 + 6 4 2 + 85 360.669 85 360.823 11 -0.154 12.483 146.8610
7 3 5 + 6 3 4 + 85 371.762 85 371.789 11 -0.027 15.120 143.6253
7 -6 2   6 -6 1     85 456.630 19   4.944 155.5393
7 4 3   6 4 2   85 506.175 85 506.179 16 -0.004 12.571 146.6097
7 -5 3   6 -5 2   85 553.365 85 553.288 17 0.077 9.123 150.4139
10 2 9 - 10 1 10 + 85 664.038 85 663.943 20 0.095 1.403 151.8343
11 4 7 + 11 3 8 - 85 727.753 85 727.728 18 0.025 3.078 162.4132
7 -4 4   6 -4 3   85 743.967 85 743.894 16 0.073 12.532 146.2356
7 2 5 + 6 2 4 + 88 998.368 88 998.415 12 -0.047 17.049 141.4958
7 2 5   6 2 4   89 140.383 89 140.366 18 0.017 17.051 141.0232
25 5 20 - 25 4 21 +   107 021.644 361   8.289 274.8357
9 -2 8   8 -2 7   107 022.162 107 022.092 13 0.070 22.628 146.6924
10 1 9 - 9 2 8 - 107 472.351 107 472.387 15 -0.036 2.144 150.7587
9 -3 7   8 -3 6   111 005.617 111 005.582 19 0.035 20.800 149.1777
9 1 8   8 1 7   111 094.105 111 094.056 13 0.049 23.222 146.0900
12 0 12 + 11 0 11 + 131 536.624 131 536.653 12 -0.029 31.375 155.8502
12 0 12   11 0 11   131 612.344 131 612.301 13 0.043 31.558 155.3072
12 1 12 + 11 0 11 + 131 764.316 131 764.341 12 -0.025 4.870 155.8502
11 5 7 + 10 5 6 + 134 531.846 134 531.833 13 0.013 23.125 164.8530
27 7 20 - 27 6 21 +   134 545.609 582   8.581 304.5077
11 -7 5   10 -7 4   134 545.615 134 545.516 27 0.099 17.431 175.4588
35 8 27 + 35 7 28 -   134 553.290 912   12.622 416.6235
11 5 6 - 10 5 5 - 134 585.070 134 585.141 13 -0.071 23.125 164.8541
11 -3 9   10 -3 8   134 713.629 134 713.526 16 0.103 26.708 156.9827
11 5 6   10 5 5   134 739.630 134 739.629 19 0.001 23.251 164.7142
12 2 11 - 11 2 10 - 140 020.525 140 020.564 12 -0.039 30.616 158.9957
11 2 9 + 10 2 8 + 140 166.667 140 166.713 12 -0.046 28.103 155.9781
12 -2 11   11 -2 10   140 324.728 140 324.699 12 0.029 30.787 158.5211
13 -1 13   12 -1 12   142 032.334 142 032.293 14 0.041 34.222 159.7047
13 0 13 + 12 0 12 + 142 052.800 142 052.735 14 0.065 34.029 160.2378
13 0 13   12 0 12   142 125.416 142 125.410 14 0.006 34.224 159.6973
13 1 13 + 12 0 12 + 142 185.220 142 185.198 14 0.022 5.339 160.2378
15 0 15 + 14 1 14 + 163 042.398 163 042.248 20 0.100 6.267 170.0683
15 1 15 + 14 1 14 + 163 086.032 163 085.873 20 0.159 39.344 170.0683
15 0 15   14 -1 14   163 113.094 163 113.156 18 -0.062 6.073 169.5325
15 0 15 + 14 0 14 + 163 118.722 163 118.574 20 0.148 39.345 170.0657
14 1 13   13 1 12   163 142.587 163 142.607 14 -0.020 36.185 168.1362
15 -1 15   14 -1 14   163 154.325 163 154.404 18 -0.079 39.561 169.5325
15 0 15   14 0 14   163 185.864 163 185.922 18 -0.058 39.561 169.5300
15 -1 15   14 0 14   163 227.097 163 227.169 18 -0.072 6.074 169.5300
16 0 16 + 15 1 15 + 173 616.616 173 616.407 25 0.209 6.727 175.5082
16 1 16 + 15 1 15 + 173 641.411 173 641.171 25 0.240 42.007 175.5082
16 0 16 + 15 0 15 + 173 660.281 173 660.032 25 0.249 42.007 175.5068
16 0 16   15 -1 15   173 683.479 173 683.597 23 -0.118 6.525 174.9747
24 3 21 - 24 2 22 +   173 704.470 241   4.324 254.0651
16 -1 16   15 -1 15   173 706.683 173 706.807 23 -0.124 42.232 174.9747
16 0 16   15 0 15   173 724.731 173 724.845 23 -0.114 42.232 174.9733
16 -1 16   15 0 15   173 747.990 173 748.055 23 -0.065 6.525 174.9733
16 5 11   15 5 10   198 384.885 198 384.966 32 -0.081 38.205 191.3885
26 8 19 - 26 7 20 +   198 429.332 290   6.921 297.4256
16 5 11 - 15 5 10 -   198 539.350 30   38.279 191.5148
16 -5 12   15 -5 11   198 578.563 198 578.589 33 -0.026 38.090 191.0593
19 3 16 - 18 4 15 -   207 295.959 118   2.804 208.1331
17 12 5 + 16 12 4 +   207 354.058 101   12.640 252.9573
17 12 6 - 16 12 5 -   207 354.058 101   12.640 252.9573
17 -13 5   16 -13 4     207 376.777 145   18.783 264.5661
17 9 8   16 9 7     207 397.312 68   32.511 223.9160
17 11 7 + 16 11 6 +   207 404.993 81   26.248 242.2767
17 11 6 - 16 11 5 -   207 404.993 81   26.248 242.2767
17 10 8 - 16 10 7 -   207 500.297 66   29.526 232.5324
17 10 7 + 16 10 6 +   207 500.297 66   29.526 232.5324
19 2 18 - 18 1 17 -   215 130.469 47   6.562 199.2115
18 5 13 - 17 5 12 -   225 648.010 57   44.072 205.2072
19 2 17 + 18 2 16 +   225 702.569 46   48.659 203.7419
6 6 1 - 5 5 0 -   225 727.540 30   2.592 148.5921
6 6 0 + 5 5 1 +   225 727.552 30   2.592 148.5921
18 5 13   17 5 12     225 756.154 54   43.428 205.0713
7 6 1 + 6 5 2 +   237 899.077 27   2.594 151.0254
20 3 18 + 19 2 17 +   237 969.273 58   5.371 211.2706
37 7 31 + 37 6 32 -   238 027.934 1642   8.537 434.5487
20 -14 7   19 -14 6     244 000.464 195   27.134 299.1664
20 15 5 - 19 15 4 -   244 048.806 207   23.017 312.5791
20 15 6 + 19 15 5 +   244 048.806 207   23.017 312.5791
19 4 15 + 18 4 14 +   244 066.113 79   48.355 209.5678
27 1 26 - 27 0 27 +   244 066.575 470   1.456 268.2307
20 14 6 + 19 14 5 +   244 073.956 178   20.522 299.0954
20 14 7 - 19 14 6 -   244 073.956 178   20.522 299.0954
20 10 10   19 10 9     244 112.669 108   39.852 254.7516
20 13 7 - 19 13 6 -   244 119.960 154   24.670 286.5471
20 13 8 + 19 13 7 +   244 119.960 154   24.670 286.5471
20 12 8 + 19 12 7 +   244 198.512 134   34.020 274.9352
20 12 9 - 19 12 8 -   244 198.512 134   34.020 274.9352
20 -13 8   19 -13 7     244 207.619 159   30.739 286.5459
a Upper and lower state transitions quantum numbers. The rotational quantum number J, and the asymmetric rotor labels $K_{\rm a}$ and $K_{\rm c}$ are identified for each energy level. For the A symmetry species, P is the parity quantum number, for the E species, P is not defined, instead, the $K_{\rm a}$ label has a signed value (Ilyushin et al. 2008; Hougen et al. 1994). Note that this information has been suppressed in Table 2, otherwise the quantum number labeling is the same. b Observed laboratory frequencies in MHz from Ogata et al. (2004), the experimental uncertainty is 50 kHz for all measured lines; c calculated frequencies, uncertainties and obs-calc values are from (Carvajal et al. 2007) for the measured lines, the predicted frequencies and uncertainties for unmeasured lines is from Kleiner et al. (private communication); d lower state energy in cm-1, relative to the J=K=0 A species levels, set as zero energy.


Source LaTeX | All tables | In the text