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Chapter 17: Q.43. (page 641)

Question: Draw additional resonance structures for each species.

Short Answer

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Answer

a.

b.

c.

Step by step solution

01

Resonance structures

Several structures can be employed to detail bonding in a particular molecule, and such structures are resonance structures. Another name that is employed to denote resonance structures is canonical structures.

02

Cyclic compounds

Cyclic compounds are compounds where one or several atoms are connected like a ring. There are several cyclic compounds, and some of them include cyclopropane and cyclohexane.

03

Additional resonance structures for each species

a. The additional resonance structures of cyclopropenyl radical can be given as:

Additional resonance structure of cyclopropenyl radical

b. The additional resonance structures of pyrrole can be given as:

Additional resonance structures of pyrrole

c. The additional resonance structures of phenanthrene can be given as:

Additional resonance structures of phenanthrene

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Most popular questions from this chapter

Question: Januvia, the trade name for sitagliptin, was introduced in 2006 for the treatment of type 2 diabetes. (a) Explain why the five-membered ring in sitagliptin is aromatic. (b) Determine the hybridization of each N atom. (c) In what type of orbital does the lone pair on each N atom reside?

Question: Explain why tetrahydrofuran has a higher boiling point and is much more water soluble than furan, even though both compounds are cyclic ethers containing four carbons.

Question: Explain why compound A is much more stable than compound B.

Question: Name each compound and state how many lines are observed in its C13NMR spectrum.

Question: Which of the diethylbenzene isomers (ortho, meta, or para) corresponds to each set of C13NMR spectral data?

[A] C13NMR signals: 16, 29, 125, 127.5, 128.4, and 144 ppm

[B] C13 NMR signals: 15, 26, 126, 128, and 142 ppm

[C] C13NMR signals: 16, 29, 128, and 141 ppm
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