Structure of Benzene (AQA A-Level Chemistry): Flashcards

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Structure of Benzene
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Year Kekulé proposed the benzene structure

1865

Kekulé's name for benzene structure

Cyclohexa-1,3,5-triene

Molecular formula of benzene

C6H6C_6H_6

Bond length in benzene (nm)

0.142

Number of delocalized π-electrons in benzene

6

Bond angles in benzene (degrees)

120°120°

Actual enthalpy of hydrogenation of benzene (kJ/mol)

−208-208 kJ/mol

Delocalization energy of benzene (kJ/mol)

152152 kJ/mol

Formula of phenyl group

−C6H5-C_6H_5

Type of reaction benzene typically undergoes

Substitution

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