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Arenes (aromatic hydrocarbons)

Long-term exposure may cause certain types of cancer.
Used as feedstock for production of many chemicals.
Complete combustion:
o Sooty flame
o Due to high carbon to hydrogen ratio.

Kekulé Model:

Ring of carbon atoms.
Alternating single and double bonds.
Later adaption states that…

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The Delocalised Model of Benzene

The molecular formula of benzene is C6H6.
The delocalised model suggests that each carbon forms three sigma-bonds.
Therefore, there's one p-orbital on each carbon that is perpendicular to the
plane of the ring, which created pi-bonds. A pi-system is created from the
overlapping of…


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