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Table 3.
Molecular constants for glutaronitrile.
| Constants/units | FTMW fit | Global fit | mmW fit | Theory (a) |
|---|---|---|---|---|
| A/MHz | 4756.13738(24) | 4756.1397(30) | 4755.60(11) | 4767.1 |
| B/MHz | 1582.79295(64) | 1582.7606(25) | 1582.7530(84) | 1571.6 |
| C/MHz | 1449.29522(55) | 1449.27921(65) | 1449.28150(85) | 1439.5 |
| ΔJ/kHz | 2.4036(64) | 2.3447(16) | 2.3555(52) | 2.2839 |
| ΔK/kHz | 56.221(24) | 59.787(41) | 57.89(39) | 35.8181 |
| ΔJK/kHz | −19.905(21) | −20.4772(93) | −20.486(11) | −21.7187 |
| δJ/kHz | 0.5920(32) | 0.54303(77) | 0.5477(25) | 0.3213 |
| δK/kHz | 4.54(26) | 4.282(45) | 4.78(14) | 5.3779 |
| ΦK/Hz | – | 6.680(87) | 4.40(47) | 1.3457 |
| ΦKJ/Hz | – | −1.834(17) | −1.804(21) | −1.2627 |
| ϕJK/Hz | – | −0.112(17) | −0.110(30) | −0.5042 |
| χaa/MHz | −0.4123(10) | – | – | −0.4126 |
| χbb/MHz | 0.0989(15) | – | – | 0.1045 |
| σrms/kHz | 3.44 | 38.10 | 42.33 | – |
| σwrms | 0.60 (b) | 0.76 (c) | 0.84 (c) | – |
| Nlines | 228 (d) | 111 | 89 | – |
| Jmin/Jmax | 0/5 | 0/54 | 24/54 | – |
| Ka, min/Ka, max | 0/3 | 0/18 | 0/18 | – |
Notes. Numbers in parentheses represent the derived uncertainty (1σ) of the parameter in units of the last digit.
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