Mass Spectra of Other Organic Compound Classes

2 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 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 one other carbon atom), sec for secondary (note that the OH group is attached to a carbon atom attached to two other carbon atoms). 

MW for all Isomers = 74 Da. Asterisks In table body denote the most abundant fragment (the base peak). The abundance Is normalized to 100 for the base peak In eaoh pattern, but the actual abundances of these peaks probably differ from each other. 

In the butanol spectrum, the most abundant fragment is at mk = 31, corresponding to CH20H with the structure H2C=OH+. The fragment lost was 74 - 31 = 43, probably as a 

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