4. Reactivity considerations suggest that an unknown compound, which has the mass spectrum shown in Fig. 2, is a vinyl halide. Combustion analysis gave the following results: Carbon, 35.06 %; Hydrogen, 6.62 %. In order to finish the combustion analysis properly, the operator needs to know which halide to test for. Which halide would you suggest? Postulate a molecular formula for this unknown compound. Explanation of the fragmentation pattern is not required! 100 80 60 40 20 % of base peak 41 40 80 Fig.2 M 121/123 136/138 120 160 m/e

4. Reactivity considerations suggest that an unknown compound, which has the mass spectrum shown in Fig. 2, is a vinyl halide. Combustion analysis gave the following results: Carbon, 35.06 %; Hydrogen, 6.62 %. In order to finish the combustion analysis properly, the operator needs to know which halide to test for. Which halide would you suggest? Postulate a molecular formula for this unknown compound. Explanation of the fragmentation pattern is not required! 100 80 60 40 20 % of base peak 41 40 80 Fig.2 M 121/123 136/138 120 160 m/e

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter14: Mass Spectrometry

Section: Chapter Questions

Problem 14.27P: Following is the mass spectrum of an unknown compound. The two highest peaks are at m/z 120 and 122....

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