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Topic: MS spectrum questions  (Read 2812 times)

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Offline tashian

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MS spectrum questions
« on: May 29, 2010, 04:11:40 AM »
Hi,

I have some MS homework. I tried to figure it out, but have some problems. I'll attach the MS spectra- Could you please help?

The first question is about the attached spectrum-  C7H7Br. first- what is the 65 fragment?
second- can this MS spectrum tell me whether it is Bromomethyl benzene or 1 Bromo-3-methyl benzene? what I'm not sure about is: Is there one substituent -methylbromide, or two substituent in two positions- one is a bromide and one is a methyl?

Thank you very much!
« Last Edit: May 29, 2010, 04:48:15 AM by tashian »
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Offline xoto

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Re: MS spectrum questions
« Reply #1 on: May 29, 2010, 07:53:49 AM »
the structure possibly has only one substituent, methylbromide.
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Offline tashian

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Re: MS spectrum questions
« Reply #2 on: May 29, 2010, 01:21:14 PM »
Hi, thank you for your reply!

How do you know it from the spectrum? would the spectrum be different in the other case?
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