Table 4: Measured transitions of the ground vibrational state of CH3CHDCN.
Transition Obs. Freq. obs.- calc. S Dipole $E_{\rm l}$
J' $K'_{\rm a}$ $K'_{\rm c}$ J'' $K''_{\rm a}$ $K''_{\rm c}$ (MHz) (MHz)     (cm-1)
21 4 17 20 5 16 8145.638 -0.015 3.1333 b 78.57
36 5 31 36 5 32 8324.713 -0.032 1.1806 a 213.36
63 8 55 63 8 56 8399.871 -0.011 1.6500 a 637.87
7 1 6 6 2 5 8464.923 0.012 1.2346 b 8.85
9 3 7 10 2 8 8618.098 -0.003 1.3927 b 18.98
12 2 10 12 2 11 8717.220 0.009 0.5901 a 25.56
54 7 47 54 7 48 8805.418 -0.005 1.4898 a 471.24
45 6 39 45 6 40 8810.297 -0.001 1.3333 a 329.72
1 0 1 0 0 0 8816.849 0.004 1.0000 a 0.00
28 4 24 28 4 25 9391.902 0.008 0.9768 a 130.52
20 3 17 20 3 18 9748.892 0.009 0.7783 a 67.91
17 3 15 16 4 12 10 281.507 -0.001 2.5468 b 50.76
64 8 56 64 8 57 10 379.536 0.018 1.5968 a 656.81
10 1 10 9 2 7 10 485.947 -0.061 1.0465 b 16.00
37 5 32 37 5 33 10 561.366 -0.047 1.1258 a 224.31
6 1 5 6 1 6 10 611.891 -0.005 0.3106 a 6.66
18 5 14 19 4 15 10 639.881 0.001 2.7029 b 66.71
13 2 12 12 3 9 10 806.862 0.021 1.8927 b 29.01
27 7 21 28 6 22 10 903.039 0.026 4.0288 b 143.70
55 7 48 55 7 49 10 947.340 -0.003 1.4362 a 487.53
36 9 28 37 8 29 11 002.482 0.008 5.3534 b 249.85
46 6 40 46 6 41 11 044.227 -0.011 1.2791 a 343.34
18 5 13 19 4 16 11 169.908 -0.006 2.7004 b 66.69
13 2 11 13 2 12 11 552.330 0.006 0.5347 a 29.37
44 9 36 43 10 33 11 676.935 -0.018 6.5527 b 345.34
44 9 35 43 10 34 11 679.041 -0.001 6.5527 b 345.34
26 5 22 25 6 19 11 921.651 0.003 3.9003 b 119.79
35 7 29 34 8 26 11 931.913 -0.034 5.2284 b 218.00
35 7 28 34 8 27 11 963.341 -0.017 5.2285 b 218.00
29 4 25 29 4 26 11 977.187 0.006 0.9222 a 139.09
12 2 10 11 3 9 12 074.616 0.016 1.8603 b 25.45
4 2 3 5 1 4 12 302.830 0.025 0.6552 b 5.20
26 5 21 25 6 20 12 334.823 0.014 3.9022 b 119.79
21 3 18 21 3 19 12 565.691 0.025 0.7243 a 74.10
65 8 57 65 8 58 12 743.456 0.007 1.5435 a 676.05
5 2 3 6 1 6 12 975.003 0.037 0.7065 b 6.66
9 3 6 10 2 9 13 227.370 -0.001 1.3462 b 18.83
38 5 33 38 5 34 13 254.293 -0.018 1.0719 a 235.56
56 7 49 56 7 50 13 508.650 0.026 1.3825 a 504.11
47 6 41 47 6 42 13 722.075 -0.003 1.2254 a 357.26
7 1 6 7 1 7 14 137.108 -0.010 0.2697 a 8.66
17 3 14 16 4 13 14 455.726 0.068 2.5842 b 50.76
13 4 10 14 3 11 14 790.253 -0.001 1.9317 b 37.00
11 1 11 10 2 8 14 861.318 -0.028 1.0401 b 18.98
14 2 12 14 2 13 14 906.976 0.028 0.4868 a 33.46
30 4 26 30 4 27 15 067.432 -0.014 0.8696 a 147.96
31 8 24 32 7 25 15 504.979 0.018 4.5828 b 188.30
22 6 16 23 5 19 15 548.329 -0.025 3.2567 b 98.04
22 3 19 22 3 20 15 908.973 0.009 0.6740 a 80.58
13 4 9 14 3 12 16 164.630 -0.002 1.9235 b 36.95
39 5 34 39 5 35 16 455.692 -0.031 1.0191 a 247.10
57 7 50 57 7 51 16 543.426 0.014 1.3289 a 520.99
4 0 4 3 1 3 16 606.167 0.011 1.6423 b 2.38
48 6 42 48 6 43 16 897.855 0.023 1.1721 a 371.47
2 1 2 1 1 1 17 127.899 0.011 1.5000 a 0.95
19 1 19 18 1 18 160 885.388 0.018 18.9238 a 49.22
19 0 19 18 0 18 161 315.310 0.053 18.9303 a 49.15
19 2 18 18 2 17 165 755.106 0.042 18.7629 a 52.72
19 10 10 18 10 9 167 711.801 0.062 13.7374 a 117.07
19 9 11 18 9 10 167 713.718 0.069 14.7374 a 104.40
19 11 8 18 11 7 167 719.287 0.056 12.6321 a 131.05
19 8 12 18 8 11 167 728.769 0.047 15.6322 a 93.07
19 12 7 18 12 6 167 733.922 0.031 11.4215 a 146.36
19 13 7 18 13 6 167 754.360 0.042 10.1057 a 162.98
19 7 13 18 7 12 167 763.740 0.038 16.4216 a 83.06
19 14 5 18 14 4 167 779.610 0.016 8.6846 a 180.92
19 15 5 18 15 4 167 809.167 0.068 7.1582 a 200.17
19 6 14 18 6 13 167 831.864 0.155 17.1058 a 74.40
19 6 13 18 6 12 167 831.864 -0.044 17.1058 a 74.40
19 16 4 18 16 3 167 842.461 0.067 5.5265 a 220.72
19 17 2 18 17 1 167 879.190 0.025 3.7896 a 242.58
19 18 1 18 18 0 167 919.266 0.087 1.9474 a 265.73
19 3 17 18 3 16 167 928.560 0.052 18.5201 a 56.41
19 5 15 18 5 14 167 958.486 0.059 17.6845 a 67.07
19 5 14 18 5 13 167 966.243 0.046 17.6845 a 67.07
19 4 16 18 4 15 168 145.967 0.032 18.1573 a 61.09
19 4 15 18 4 14 168 323.612 0.070 18.1574 a 61.10
19 1 18 18 1 17 168 567.295 0.060 18.8695 a 51.91
20 0 20 19 0 19 169 576.957 0.018 19.9292 a 54.53
19 3 16 18 3 15 169 814.938 0.051 18.5260 a 56.60
19 2 17 18 2 16 171 704.487 0.012 18.7980 a 53.84
21 0 21 20 0 20 177 843.507 0.029 20.9283 a 60.18
11 3 9 10 2 8 194 144.997 0.022 3.8296 b 18.98
22 10 13 21 10 12 194205.395 0.020 17.4552 a 134.73
22 11 12 21 11 11 194 206.522 0.031 16.5007 a 148.72
23 1 23 22 1 22 194 209.226 -0.006 22.9252 a 72.35
23 0 23 22 0 22 194 390.209 0.038 22.9272 a 72.32
23 1 23 22 0 22 195 045.142 0.008 19.5185 b 72.32
20 2 19 19 1 18 195 507.658 0.010 9.4792 b 57.54
24 1 23 23 2 22 198 375.762 0.015 13.0370 b 83.20
27 2 25 26 3 24 198 645.870 0.012 8.5301 b 109.40
23 2 22 22 2 21 199 767.238 0.028 22.7827 a 76.54
23 1 22 22 1 21 201 840.134 0.026 22.8324 a 76.08
23 3 21 22 3 20 203 001.662 0.049 22.5939 a 80.58
23 11 12 22 11 11 203 036.102 0.053 17.7398 a 155.20
23 10 14 22 10 13 203 037.818 0.050 18.6529 a 141.21
23 12 11 22 12 10 203 045.656 0.040 16.7398 a 170.51
23 9 15 22 9 14 203 054.743 0.001 19.4790 a 128.55
23 13 10 22 13 9 203 064.000 0.011 15.6528 a 187.13
23 14 9 22 14 8 203 089.582 0.034 14.4788 a 205.08
23 8 16 22 8 15 203 093.710 0.049 20.2181 a 117.22
23 15 9 22 15 8 203 121.228 0.030 13.2179 a 224.33
23 16 7 22 16 6 203 158.166 -0.005 11.8700 a 244.89
23 7 17 22 7 16 203 166.635 0.042 20.8703 a 107.22
23 17 6 22 17 5 203 199.918 0.001 10.4352 a 266.75
23 18 6 22 18 5 203 245.984 -0.045 8.9134 a 289.90
23 19 5 22 19 4 203 296.106 -0.096 7.3046 a 314.35
23 6 18 22 6 17 203 296.757 0.066 21.4353 a 98.56
23 6 17 22 6 16 203 298.380 0.010 21.4353 a 98.56
23 20 3 22 20 2 203 350.082 -0.119 5.6089 a 340.09
23 21 2 22 21 1 203 407.712 -0.126 3.8262 a 367.11
23 22 2 22 22 1 203 468.787 -0.177 1.9566 a 395.41
23 5 19 22 5 18 203 519.398 0.020 21.9132 a 91.26
23 5 18 22 5 17 203 562.522 0.010 21.9132 a 91.26
23 4 20 22 4 19 203 734.137 0.019 22.3024 a 85.30
23 4 19 22 4 18 204 371.334 0.030 22.3031 a 85.35
23 3 20 22 3 19 206 899.456 0.020 22.6183 a 81.11
23 2 21 22 2 20 207 387.987 0.011 22.8143 a 78.54
26 2 25 25 2 24 225 056.930 0.004 25.7889 a 97.37
25 2 24 24 1 23 226 486.308 0.023 14.3041 b 89.82
27 1 27 26 1 26 227 451.904 -0.026 26.9254 a 99.93
27 0 27 26 0 26 227 521.640 -0.003 26.9260 a 99.92
26 3 24 25 3 23 229 074.738 -0.011 25.6288 a 101.76
26 5 21 25 5 20 230 375.077 0.000 25.0384 a 112.52
26 4 23 25 4 22 230 390.621 -0.006 25.3803 a 106.58
26 4 22 25 4 21 231 769.811 -0.011 25.3835 a 106.72
27 3 25 26 3 24 237 715.236 -0.009 26.6374 a 109.40
27 13 14 26 13 13 238 369.413 -0.010 20.7416 a 215.99
27 10 18 26 10 17 238 373.896 0.001 23.2972 a 170.07
27 14 14 26 14 13 238 392.400 -0.025 19.7415 a 233.94
27 9 19 26 9 18 238 414.308 0.018 24.0009 a 157.41
27 15 13 26 15 12 238 423.917 -0.012 18.6674 a 253.20
27 16 11 26 16 10 238 462.693 -0.010 17.5192 a 273.76
27 8 20 26 8 19 238 488.933 -0.015 24.6305 a 146.09
27 17 11 26 17 10 238 507.830 -0.036 16.2969 a 295.62
27 18 10 26 18 9 238 558.700 -0.069 15.0006 a 318.79
69 2 68 68 2 67 580 910.446 -0.040 68.7809 a 670.16
66 18 49 65 18 48 581 590.167 0.064 61.0945 a 846.84
66 17 50 65 17 49 581 601.544 0.080 61.6250 a 823.62
66 19 47 65 19 46 581612.441 0.049 60.5337 a 871.37
66 16 51 65 16 50 581 653.444 0.083 62.1252 a 801.73
66 20 46 65 20 45 581 663.189 0.001 59.9427 a 897.20
66 21 46 65 21 45 581 738.576 0.002 59.3213 a 924.34
66 15 52 65 15 51 581 755.324 0.090 62.5951 a 781.17
66 22 45 65 22 44 581 835.489 -0.029 58.6697 a 952.76
66 14 53 65 14 52 581 920.471 0.095 63.0347 a 761.95
66 23 43 65 23 42 581 951.567 -0.064 57.9877 a 982.47
66 24 43 65 24 42 582 085.039 0.029 57.2755 a 1013.46
66 13 54 65 13 53 582 168.249 0.097 63.4441 a 744.08
66 25 42 65 25 41 582 234.117 0.003 56.5329 a 1045.72
66 26 41 65 26 40 582 397.621 -0.060 55.7601 a 1079.24
66 12 55 65 12 54 582 528.138 0.179 63.8233 a 727.60
66 12 54 65 12 53 582 528.138 -0.032 63.8233 a 727.60
66 27 40 65 27 39 582 574.641 -0.026 54.9569 a 1114.02
66 28 38 65 28 37 582 764.214 0.017 54.1235 a 1150.05
66 29 37 65 29 36 582 965.647 0.117 53.2597 a 1187.32
66 11 56 65 11 55 583 046.157 0.076 64.1722 a 712.51
66 11 55 65 11 54 583 049.586 0.064 64.1722 a 712.51
66 10 57 65 10 56 583789.869 0.050 64.4909 a 698.87
66 10 56 65 10 55 583 834.239 0.052 64.4909 a 698.87
51 6 46 50 5 45 584 073.815 -0.027 11.7577 b 396.40
66 34 32 65 34 31 584129.722 0.017 48.4865 a 1392.05
67 4 63 66 4 62 584 286.076 0.000 66.4435 a 667.13
66 9 58 65 9 57 584 781.420 0.045 64.7788 a 686.71
66 7 60 65 7 59 584 876.867 0.007 65.2270 a 666.60
52 6 47 51 5 46 584 898.259 -0.129 12.1552 b 411.76
66 5 61 65 5 60 585 208.085 0.013 65.4062 a 656.63
66 9 57 65 9 56 585 212.206 0.065 64.7797 a 686.76
65 6 59 64 6 58 585 239.243 0.003 64.4771 a 643.49
68 4 65 67 4 64 585 447.928 -0.008 67.5358 a 675.77
68 3 65 67 3 64 585 488.461 -0.023 67.5360 a 675.77
53 6 48 52 5 47 585 590.283 0.007 12.6145 b 427.42
66 8 59 65 8 58 585 607.934 0.030 65.0310 a 676.05
68 4 65 67 3 64 585 648.728 -0.061 43.9222 b 675.77
54 6 49 53 5 48 586 212.150 0.079 13.1394 b 443.37
55 6 50 54 5 49 586 827.500 0.003 13.7327 b 459.61
67 5 63 66 4 62 586 869.571 0.021 34.9153 b 667.13
69 3 67 68 3 66 587 239.919 -0.069 68.6504 a 683.17
69 2 67 68 2 66 587 241.733 0.034 68.6504 a 683.17
69 3 67 68 2 66 587 247.796 0.000 52.1857 b 683.17
56 6 51 55 5 50 587 500.756 0.027 14.3964 b 476.14
57 6 52 56 5 51 588 295.528 0.001 15.1314 b 492.96
66 8 58 65 8 57 588 408.553 0.014 65.0432 a 676.47
70 1 69 69 1 68 589 128.465 -0.035 69.7809 a 689.54
58 6 53 57 5 52 589 274.098 -0.010 15.9372 b 510.06
38 7 32 37 6 31 590 245.915 -0.041 11.1457 b 231.48
59 6 54 58 5 53 590 495.691 -0.074 16.8118 b 527.43
42 6 36 41 5 37 590 793.431 -0.028 9.5155 b 271.07
71 0 71 70 0 70 591 053.717 -0.053 70.9244 a 694.96
69 5 64 68 6 63 591 221.099 0.125 27.7557 b 716.57
38 7 31 37 6 32 591 382.017 -0.044 11.1348 b 231.45
68 5 64 67 5 63 591 943.537 -0.014 67.4378 a 686.70
60 6 55 59 5 54 592 015.086 -0.150 17.7513 b 545.08
68 4 64 67 4 63 592 409.523 0.006 67.4410 a 686.62
69 3 66 68 4 65 593 526.217 -0.034 44.9453 b 695.30
69 4 66 68 4 65 593 654.043 -0.010 68.5348 a 695.30
42 5 37 41 4 38 593 661.871 -0.044 5.3642 b 264.67
66 6 60 65 6 59 593 732.907 0.000 65.4689 a 663.02
69 4 66 68 3 65 593 814.241 -0.117 44.9464 b 695.30
66 7 59 65 7 58 593 850.986 0.006 65.3278 a 668.70
61 6 56 60 5 55 593 880.970 0.009 18.7503 b 563.00
70 2 68 69 3 67 595 447.285 -0.015 53.1906 b 702.76
70 3 68 69 3 67 595 452.017 -0.042 69.6501 a 702.76
70 2 68 69 2 67 595 453.457 0.060 69.6501 a 702.76
70 3 68 69 2 67 595 458.219 0.063 53.1906 b 702.76
71 1 70 70 1 69 597 343.930 -0.006 70.7808 a 709.19
39 7 33 38 6 32 598 252.929 -0.042 11.2494 b 242.74
69 4 65 68 5 64 598 423.836 0.228 37.0595 b 706.45
63 6 58 62 5 57 598 803.592 0.107 20.8977 b 599.65
39 7 32 38 6 33 599 792.633 -0.123 11.2341 b 242.69
68 5 63 67 5 62 601 035.254 0.012 67.3869 a 695.93
43 6 37 42 5 38 601 215.210 -0.063 9.3866 b 283.49
70 3 67 69 4 66 601 755.785 0.046 45.9678 b 715.10
70 5 65 69 6 64 601 828.584 0.016 28.9717 b 736.79
70 4 67 69 4 66 601 857.553 0.030 69.5339 a 715.10
70 3 67 69 3 66 601 883.555 0.014 69.5340 a 715.10
64 6 59 63 5 58 601 911.925 0.051 22.0290 b 618.38
70 4 67 69 3 66 601 985.414 0.089 45.9687 b 715.10
71 2 69 70 3 68 603 657.935 -0.008 54.1948 b 722.62
71 3 69 70 3 68 603 661.656 0.001 70.6497 a 722.62
71 2 69 70 2 68 603 662.751 0.050 70.6497 a 722.62
71 3 69 70 2 68 603 666.473 0.059 54.1948 b 722.62
70 9 62 69 9 61 620 433.510 -0.042 68.8496 a 766.52
70 9 61 69 9 60 621 434.243 0.074 68.8524 a 766.65
23 11 13 22 10 12 622 356.554 -0.065 11.9564 b 141.21
71 6 66 70 6 65 622 852.683 -0.044 70.3468 a 757.29
45 6 39 44 5 40 623 459.775 0.033 9.0142 b 309.21
69 6 64 68 5 63 624 029.166 0.010 27.9286 b 715.98
37 8 29 36 7 30 624 272.377 -0.087 12.0107 b 229.03
71 5 66 70 5 65 624 852.289 -0.016 70.3661 a 756.87
42 7 35 41 6 36 625 048.068 -0.035 11.4760 b 278.20
71 18 54 70 18 53 625 329.473 -0.017 66.4409 a 946.75
71 19 52 70 19 51 625 331.305 0.008 65.9196 a 971.29
71 20 51 70 20 50 625 366.960 -0.103 65.3701 a 997.13
71 17 55 70 17 54 625 368.104 0.030 66.9341 a 923.54
71 21 50 70 21 49 625 431.838 -0.073 64.7924 a 1024.28
71 16 56 70 16 55 625 455.718 0.008 67.3992 a 901.66
71 22 49 70 22 48 625 522.002 -0.073 64.1866 a 1052.72
71 15 57 70 15 56 625 604.365 0.016 67.8361 a 881.12
71 23 48 70 23 47 625 634.526 -0.075 63.5526 a 1082.45
71 24 48 70 24 47 625 767.015 -0.119 62.8905 a 1113.46
71 14 58 70 14 57 625 830.991 0.011 68.2449 a 861.93
71 25 46 70 25 45 625 917.915 0.136 62.2002 a 1145.74
71 26 46 70 26 45 626 084.975 -0.011 61.4818 a 1179.29
71 13 59 70 13 58 626 160.719 0.038 68.6256 a 844.12
71 27 45 70 27 44 626 267.465 -0.008 60.7351 a 1214.10
71 28 44 70 28 43 626 464.214 0.043 59.9603 a 1250.16
71 12 60 70 12 59 626 631.955 -0.085 68.9782 a 827.70
19 12 7 18 11 8 626 633.366 -0.061 12.1192 b 131.05
28 10 19 27 9 18 626 647.471 -0.080 12.0899 b 165.36
71 11 61 70 11 60 627 304.657 -0.009 69.3029 a 812.71
71 11 60 70 11 59 627 318.951 -0.004 69.3029 a 812.71
71 7 65 70 7 64 627 682.434 -0.014 70.2488 a 767.01
71 10 62 70 10 61 628 244.441 -0.018 69.5994 a 799.20
71 10 61 70 10 60 628 398.854 -0.040 69.5997 a 799.22
44 5 39 43 4 40 628 804.286 -0.033 4.6167 b 289.62
71 9 63 70 9 62 629 334.548 -0.091 69.8660 a 787.22
70 6 65 69 5 64 629 649.968 0.036 29.1123 b 736.29
71 8 64 70 8 63 629 689.722 -0.060 70.0910 a 776.67
33 9 25 32 8 24 630 376.058 0.053 12.2129 b 198.25
71 9 62 70 9 61 630 551.511 -0.072 69.8696 a 787.38
24 11 14 23 10 13 631 184.572 -0.134 12.1283 b 147.98
38 8 31 37 7 30 632 719.694 -0.025 12.1516 b 239.95
43 7 36 42 6 37 633 515.496 0.101 11.5345 b 290.63
71 6 65 70 6 64 634 830.982 -0.083 70.3972 a 764.81
29 10 20 28 9 19 635 436.249 -0.110 12.2695 b 173.61
71 8 63 70 8 62 635 441.009 -0.144 70.1353 a 777.74
20 12 8 19 11 9 635 476.076 0.012 12.2624 b 136.65
71 6 66 70 5 65 635 604.795 0.065 30.2881 b 756.87
44 7 38 43 6 37 635 916.160 0.123 11.6547 b 303.54
71 7 64 70 7 63 639 565.168 -0.109 70.3990 a 770.82
16 13 4 15 12 3 639 601.580 0.158 12.6393 b 131.34
25 11 15 24 10 14 640 009.763 -0.068 12.3026 b 155.05
39 8 32 38 7 31 641 178.007 -0.083 12.2879 b 251.18
44 7 37 43 6 38 642 034.932 -0.047 11.5799 b 303.36
45 7 39 44 6 38 642 777.162 0.135 11.7116 b 316.62
21 12 9 20 11 10 644 317.823 0.032 12.4127 b 142.54

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