Pyrene
| Frequency in Ar (cm-1) | Relative Intensity | Absolute Intensity, A (cm/molecule) |
| 487.6 | 0.01 | 1.8e-19 |
| 499.2 | 0.01 | 1.8e-19 |
| 542.6 | 0.02 | 3.6e-19 |
| 711.8, 715.0 | 0.43 | 7.7e-18 |
| 743.9 | 0.17 | 3.1e-18 |
| 821.5 | 0.05 | 9.0e-19 |
| 842.8 | 1 | 1.8e-17 |
| 964.1 | 0.01 | 1.8e-19 |
| 1097.3 | 0.04 | 7.2e-19 |
| 1164.5 | 0.01 | 1.8e-19 |
| 1183.9 | 0.19 | 3.4e-18 |
| 1243.0 | 0.04 | 7.2e-19 |
| 1312.1 | 0.03 | 5.4e-19 |
| 1434.8 | 0.12 | 2.2e-18 |
| 1471.0 | 0.02 | 3.6e-19 |
| 1581.3 | 0.005 | 9.0e-20 |
| 1604.0 | 0.08 | 1.4e-18 |
| 1792.6 | 0.07 | 1.3e-18 |
| 1911.5 | 0.01 | 1.8e-19 |
| 1918.0 | 0.02 | 3.6e-19 |
| 1930.6 | 0.05 | 9.0e-19 |
| 2937.5 | ||
| 2987.3 | ||
| 3002.7 | ||
| 3007.7 | ||
| 3023.6 | ||
| 3044.6 | ||
| 3050.2* | ||
| 3064.8 | ||
| 3083.9 | ||
| 3090.0 | ||
| 3091.8 | ||
| 3094.8 | ||
| 3108.4 | ||
| 3111.8 | ||
| 3118.5 | ||
| 3125.7 | ||
| Sum 3128-3026 | 0.97 | 1.7e-17 |
| * indicates | ||
| major band |