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Table 2.
IR band strengths for reference and molecules with functional group similar to EA.
| Molecule | Band position | Assignment | Integrated region | Band strengths |
|---|---|---|---|---|
| cm−1 | cm−1 | cm molecule−1 | ||
| NH3(a) | 1071 | Umbrella | 1300–950 | 22.3 × 10−18 |
| CH3OH (b) | 1030 | ν (CO) | 1066–967 | 16.8 × 10−18 |
| CH3NH2(Methylamine) (c) | 1600 | δ (NH2) | 4.3 × 10−18 | |
| CH3NHCH2OH(N-methylaminomethanol) (d) | 1414 | δ(CH)+δ(NH) | 6 × 10−19 | |
| CH3CH=NH(ethanimine) (e) | 1650 | ν (C=N) | 4.4 × 10−18 | |
| CH2=C=NH(Ketenimine) (f) | 7.2 × 10−17 | |||
| NH2CH(CH3)OH(α-aminoethanol) (g) | 1413 | δ (CH) | 1.4 × 10−18 | |
| CH3CH2OH(ethanol) (h) | 1050 | ν (CO) | 1067–1011 | 14.1 × 10−18 |
Notes.
(a)
We have calculated the absolute band strength of ammonia based on the apparent value estimated by Hudson et al. (2022),
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