Green Chemistry and the Ten Commandments

Chap. 5. The Wonderful World of Carbon: Organic Chemistry and Biochemicals 117

Cyclohexane

n-Hexane

Double-bonded­end­carbon,

C

H

1,3-Butadiene Double-bonded­middle­carbon,

Carbons­single-bonded

to­2­other­carbons, C

H

H

C

H

H H

Toluene Carbon­on­aromatic­ring,C H

Methyl­group,­CH 3

Ethyl­group,­C 2 H 5

3-Ethyl-3-methylpentane

Cl

Cl

C

H

Cl

2,3-Dichlorobutane

Middle­carbons,­C

H

H

End­carbon,­C

H

H

H

C C

H

C

H

C

H

H

H

H

C

H

H

C H

H

H H

H

C

H

H

C C

H

H

H

H

H

C

C

C

H

C

C

H

H H

C

H

H H

H

C

H

C

H

H

H C H

H H

H H

C

H

H

C

H

Cl

H

H

C

H

Cl

H C H

H

H

C

C

C

C

C

C

H

H

H

H

H H

H

H

H

H

H

C

H

H

End­carbon,­C

H

H

Figure 5.3. Representation of organic structural formulas with lines.