Table 1:
Infrared band spectral characteristics and assignments as extracted from the soot material samples. The band centres and widths are the mean values found for all the Gaussian fits (see text). The uncertainties are given in parentheses and include the dispersion of the band characteristics. The modes reported here are all stretching (str.) modes.
|
Assignment |
Wavelength ( m) |
Wavenumbers (cm-1) |
Bandwidth (cm-1) |
| Alkyne CH str. |
3.040 (0.01) |
3289 (10) |
39 (10) |
| Olefinic asym. CH2 str. |
3.24 (0.005) |
3089 (4) |
25 (5) |
| Aromatic CH str. |
3.29 (0.005) |
3039 (4) |
49 (10) |
| Olefinic CH and CH2 sym. str. |
3.35 (0.01) |
2981 (10) |
25 (7) |
| Aliphatic asym. CH3 str. |
3.38 (0.006) |
2956 (5) |
23 (7) |
| Aliphatic asym. CH2 str. |
3.42 (0.006) |
2923 (5) |
25 (10) |
| Aliphatic CH str. |
|
|
|
| or aliphatic asym. CH2 str. Fermi resonance |
3.45 (0.012) |
2894 (10) |
25 (10) |
| Aliphatic sym. CH3 str. |
3.48 (0.006) |
2869 (5) |
16 (3) |
| Aliphatic sym. CH2 str. |
3.51 (0.006) |
2850 (5) |
13 (3) |
| |
3.53 (0.006) |
2834 (10) |
29 (15) |
| sp2-C=C str. |
6.25 (0.1) |
1600 (25) |
45 (20) |
Source LaTeX |
All tables |
In the text