Table 3
Rotational temperatures derived from population diagrams of selected (complex) organic molecules toward Sgr B2(N2).
| Molecule | Statesa | T fit b |
| (K) | ||
|
|
||
| CH3CN | ν8 = 1, ν8 = 2, ν4 = 1 | 253 (15) |
| 13CH3CN | ν= 0, ν8 = 1 | 168 (13) |
| CH313CN | ν= 0, ν8 = 1 | 165.5 (3.3) |
| CH2DCN | ν= 0 | 136 (14) |
|
|
||
| C2H5CN | ν= 0 | 137.3 (1.6) |
| 13CH3CH2CN | ν= 0 | 138.3 (7.5) |
| CH313CH2CN | ν= 0 | 112 (11) |
| CH3CH213CN | ν= 0 | 150 (40) |
|
|
||
| C2H3CN | ν= 0, ν11 = 1, ν15 = 1, ν11 = 2 | 199.5 (3.4) |
| 13CH2CHCN | ν= 0 | 255 (101) |
| CH213CHCN | ν= 0 | 140 (31) |
| CH2CH13CN | ν= 0 | 278 (126) |
|
|
||
| H13CCCN | ν= 0, ν7 = 1 | 171.1 (3.2) |
| HC13CCN | ν= 0, ν7 = 1 | 167.7 (5.5) |
| HCC13CN | ν= 0, ν7 = 1 | 177 (18) |
|
|
||
| CH3OCHO | νt = 0, νt = 1 | 142.4 (4.4) |
Notes.
The standard deviation of the fit is given in parentheses. As explained in Sect. 3, these uncertainties should be viewed with caution. They may be underestimated.
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