Timeline for When pigments absorb light only around a single particular wavelength, why aren't they still white?
Current License: CC BY-SA 4.0
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| Dec 28, 2021 at 16:40 | comment | added | ACR | Because unlike atoms, molecules can also vibrate in the excited state. There are plenty of vibrational energy levels for a molecules. This is why it is not a single sharp line like atoms, but a series of lines, as you can see in the iodine spectrum. Each peak corresponds to a vibrational level. | |
| Dec 28, 2021 at 16:35 | comment | added | Bernhard Werner | Thank you for your answer! You wrote "Molecular absorption in solution or gas phase is pretty broad", but can you explain why that is? | |
| Dec 27, 2021 at 22:12 | vote | accept | Bernhard Werner | ||
| Dec 27, 2021 at 22:12 | |||||
| Dec 27, 2021 at 20:13 | history | answered | ACR | CC BY-SA 4.0 |