Table 1:
Relative intensities (PIY) and kinetic energy U0 release by fragments in the
methanol mass spectra, as a function of photon energy (at 100, 288, 292 and 310 eV).
Only fragments with intensity >0.1% were tabulated. The estimated experimental
error was below 10%.
| Fragments |
|
PIY(%) / U0 (eV) |
| m/q |
Attribution |
|
100 eV |
288 eV |
292 eV |
310 eV |
| 1 |
H+ |
|
13.7 / 2.2 |
17.3 / 2.9 |
17.0 / 3.0 |
19.1 / 3.8 |
| 2 |
H2+ |
|
1.3 / 1.5 |
1.3 / 3.0 |
1.4 / 2.9 |
1.3 / 1.1 |
| 3 |
H3+ |
|
0.5 / 0.98 |
0.4 / 2.4 |
0.5 / 2.0 |
0.6 / 0.18 |
| 12 |
C+ |
|
1.9 / 0.61 |
2.9 / 0.98 |
3.0 / 0.70 |
4.9 / 0.50 |
| 13 |
CH+ |
|
2.8 / 0.37 |
2.8 / 0.78 |
2.8 / 0.78 |
4.9 / 0.78 |
| 14 |
CH2+ |
|
4.6 / 0.43 |
4.8 / 0.35 |
4.9 / 0.35 |
5.1 / 0.34 |
| 15 |
CH3+ |
|
10.1 / 0.14 |
9.9 / 0.14 |
9.9 / 0.15 |
8.3 / 0.19 |
| 16 |
O+ |
|
1.4 / 1.2 |
1.4 / 2.2 |
1.6 / 1.59 |
2.4 / 1.1 |
| 17 |
OH+ |
|
2.9 / 0.69 |
2.2 / 0.28 |
2.6 / 0.98 |
3.3 / 1.7 |
| 18 |
H2O+ |
|
1.6 / 0.05 |
1.5 / 0.03 |
1.6 / 0.04 |
1.1 / 0.12 |
| 28 |
CO+ |
|
3.1 / 0.14 |
3.8 / 0.05 |
3.8 / 0.10 |
4.4 / 0.21 |
| 29 |
COH+ or HCO+ |
|
20.0 / 0.13 |
18.6 / 0.10 |
18.3 / 0.11 |
17.9 / 0.13 |
| 30 |
HCOH+ or H2CO+ |
|
2.3 / 0.05 |
2.4 / 0.07 |
2.4 / 0.07 |
2.0 / 0.07 |
| 31 |
H2COH+ |
|
17.3 / 0.04 |
16.2 / 0.05 |
15.9 / 0.06 |
13.8 / 0.07 |
| 32 |
CH3OH+ |
|
15.8 / 0.03 |
13.9 / 0.03 |
13.8 / 0.03 |
10.8 / 0.03 |
Source LaTeX |
All tables |
In the text