While these observations may not detract significantly from the value of the chapter, addressing them in future editions or errata will enhance the precision and clarity of the content.
– Structural Error in Figure 4.2 (Propylene):
The structure of propylene (C3H6) appears incorrect. The proper depiction should reflect a double bond between the second and third carbon atoms: H2C=CH−CH3. Accurate representation is essential for clarity, particularly for readers who may not be familiar with the correct chemical structure.
– Ambiguity in Figure 4.3 (Naphthenes):
While the structures of cyclopentane and cyclohexane are correct, the bond angles and 3D geometry are not depicted accurately. Representing cyclohexane in a chair conformation would better reflect its actual molecular structure.
– Improvement Needed in Figure 4.5 (Polynuclear Aromatics):
The structure of fluorene is unclear and could benefit from explicitly showing the methylene (-CH2-) bridge between the two benzene rings. Additionally, consistent scaling and labeling of all structures would enhance readability.