Chapter 6 Notes - Chapter 6 Notes Delocalized Electrons and...

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Chapter 6 Notes – Delocalized Electrons and Their Effect 6.1 – Delocalized Electrons: The Structure of Benzene - Delocalized electrons neither belong to a single atom nor are confined to a bond between two atoms, but are shared by three or more atoms - Benzene is a cyclic six-membered ring - Benzene is a planar molecule with six carbon-carbon bonds of equal length 6.2 – The Bonding in Benzene - Each of benzene’s six carbon atoms are sp 2 hybridized - Each π electron is shared by all six carbons, roaming freely with the doughnut- shaped clouds that lie over and under the ring of carbon atoms - There are no double bonds in benzene since the electrons are delocalized 6.3 – Resonance Contributors and the Resonance Hybrid - The approximate structure with localized electrons is called a resonance contributor - The actual structure with delocalized electrons is called a resonance hybrid - Electron delocalization occurs only if all the atoms sharing the delocalized
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