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Polycyclic Aromatic Hydrocarbons
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Polycyclic Aromatic Hydrocarbons
An image showing three examples of polycyclic aromatic hydrocarbons. Clockwise from top left, the molecules are: benz[e]acephenanthrylene, pyrene and dibenz[a,h]anthracene.
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"Polycyclic Aromatic Hydrocarbons."
http://en.wikipedia.org/wiki/File:Polycyclic_Aromatic_Hydrocarbons.png
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