The line marked a in fig 1341 is the fluorescene spectrum, Ask an Expert

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The line marked A in Fig 13.41 is the fluorescene spectrum of benzophenone in solid solution in ethanol at low temperature observed when the sample is illuminated with 360nm light. What can be said about the vibrational energy levels of the cabonyl group in a) ground electronic state
b) its excited electronic states?

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