Chapter 15: Q22P (page 477)
Draw and name all possible aromatic compounds with the formula C8H9Br.
Short Answer
Answer
Chapter 15: Q22P (page 477)
Draw and name all possible aromatic compounds with the formula C8H9Br.
Answer
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Get started for freeAnthracene has four resonance structures, one of which is shown. Draw the other three
Anthracene
Pentalene is a most elusive molecule that has been isolated only at liquid-nitrogen temperature. The pentalene dianion, however, is well known and quite stable. Explain.
Pentalene
Pentalene dianion
After the reaction below, the chemical shift ofmoves downfield from 6.98 ppm to 7.30 ppm. Explain.
Look at the three resonance structures of naphthalene shown in Section 15-6, and account for the fact that not all carbon-carbon bonds have the same length. The C1–C2 bond is 136 pm long, whereas the C2–C3 bond is 139 pm long
Calicene, like azulene (Problem 15-17), has an unusually large dipole moment for a hydrocarbon. Explain, using resonance structures.
Calicene
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