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    Hi we have been given h/c nmr data, ir etc data and have to figure out what the molecule is, this is the molecule I think it is, but I don't understand why 7.0 would be a multiplet or 1.90 a doublet of doublets, unless of course I got the wrong molecule
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    (Original post by jacksonmeg)
    Hi we have been given h/c nmr data, ir etc data and have to figure out what the molecule is, this is the molecule I think it is, but I don't understand why 7.0 would be a multiplet or 1.90 a doublet of doublets, unless of course I got the wrong molecule
    Peak at 7.0 couples to other double bond H and the methyl by something called W-coupling.

    Peak at 1.9 split by both (non-equivalent) CC double bond H atoms.

    PM me the whole q please out of interest.
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    (Original post by jacksonmeg)
    Hi we have been given h/c nmr data, ir etc data and have to figure out what the molecule is, this is the molecule I think it is, but I don't understand why 7.0 would be a multiplet or 1.90 a doublet of doublets, unless of course I got the wrong molecule

    http://www.nanalysis.com/spectra.html

    http://www.magritek.com/wp-content/u...lcrotonate.pdf
 
 
 
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