The peaks at m / z 87 , 111 and 126 in the mass spectrum of 2 , 6 − dimethylheptane − 4 − ol are to be accounted. Concept introduction: Mass spectroscopy provides a reliable molecular weight for an unknown compound and also gives us the information about the molecular formula as well. Fragmentation gives the resonance stabilized cations whenever possible. Loss of a small molecule is usually indicated by a fragment peak having an even mass number corresponding to loss of an even mass number. To determine: The peaks at m / z 87 , 111 and 126 in the mass spectrum of 2 , 6 − dimethylheptane − 4 − ol .

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Chapter 12.15C, Problem 12.11P

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Interpretation: The peaks at m/z87, 111 and 126 in the mass spectrum of 2,6−dimethylheptane−4−ol are to be accounted.

Concept introduction: Mass spectroscopy provides a reliable molecular weight for an unknown compound and also gives us the information about the molecular formula as well.

Fragmentation gives the resonance stabilized cations whenever possible. Loss of a small molecule is usually indicated by a fragment peak having an even mass number corresponding to loss of an even mass number.

To determine: The peaks at m/z87, 111 and 126 in the mass spectrum of 2,6−dimethylheptane−4−ol.

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