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Table 2.
Spectroscopic parameters of c-C5H (all in MHz).
| Parameter | Lab + TMC-1 (a) | Laboratory (b) |
|---|---|---|
| A | 45018.0 (c) | 45018(20) |
| B | 3504.062107(299) (d) | 3504.0621(3) |
| C | 3246.94141(37) | 3246.9414(4) |
| ΔN × 103 | 0.2888(52) | 0.288 (e) |
| εaa | 165.1446(216) | 165.15(2) |
| εbb | 5.1476(56) | 5.152(6) |
| εcc | −28.1469(38) | −28.148(4) |
| aF(H) | −11.8018(140) | −11.79(2) |
 |
6.1686(234) | 12.13(7) |
 |
−0.170(49) | 5.8(1) |
| σ(kHz) | 9.4 | – |
| Nlines | 42 | 34 |
(b)
Molecular parameters derived by Apponi et al. (2001).
(e)
Fixed to the C5H2 ring chain value; see Apponi et al. (2001).
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