Spectra of Other Organic Compound Classes

Mass Spectra of Other Organic Compound Classes 

Functional groups are of two main types those that have a single bond to a heteroatom and those that have a multiple bond to a heteroatom. Alcohols, halides, ethers, and amines are examples of the first type, while aldehydes, ketones, and carboxylic acids are examples of the second type. 

The mass spectra of three aliphatic alcohols, butanol, 2-butanol, and 2-methyl-2-propanol are given in Figs. 10.20-10.22, respectively. These three alcohols are isomers they have the same chemical formula, C4H10O also written as C4H9OH to emphasis the alcohol OH functional group, but different structures, as shown  

The names in parentheses are old names for these alcohols. The n stands for normal (meaning a primary alcohol the OH group is attached to a carbon atom attached to only 

Molecular ions for primary and secondary aliphatic alcohols are usually weak or absent tertiary aliphatic alcohols typically show no molecular ion peak. 

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