anoopai
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NMR help
hi all,
I got some compounds nmr, but dont giving any groups tests, can anyone give its hint , if so i will post my nmr data
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Nicodem
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Thread Moved
9-5-2013 at 10:52 |
Hexavalent
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Have you even attempted to read the spectra yourself? You seem to have a habit of posting work for others, without even attempting it first yourself.
Post them, and we can help you.
"Success is going from failure to failure without loss of enthusiasm." Winston Churchill
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anoopai
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first two i think they are terpenoids with sugar attachements, rest dont have clue.
These are my spectral values
Attachment: sp.txt (3kB)
This file has been downloaded 826 times
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Acidum
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You know that in order to solve NMR spectra of such complex compounds one needs not only values but also more informations like multiplicity of
signals (singlet/doublet/...) and coupling of signals...
...and then I disappeared in the mist...
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anoopai
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CPD9 C13
[Edited on 11-5-2013 by anoopai]
Attachment: CPD9 cNMR.pdf (523kB)
This file has been downloaded 544 times
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kristofvagyok
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Was there a proton scan from that? Or an MS? This looks like something impure with an oxime/amide/amidine group in it. Almost infine solutions could
be given for this spectra.
Was the compound pure? Have anyone attempted to purify it? Those small peaks looks bad, and since they are also listed, it looks chaotic.
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anoopai
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CPD9 HNMR ,
Didnt took mass, This compound was too difficult to purify, but purified to a level we could
Attachment: CPD9 HNMR.CONC.pdf (554kB)
This file has been downloaded 539 times
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anoopai
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What about other spectra ?
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BromicAcid
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What was your deuterated solvent on this one? Even with a deuterated solvent you should see some hint of your solvent, especially in dilute
conditions and your TMS peak is moderately large.
For your HNMR your peak at 5.746 must have been important since you set it to 1 for your integration, mind telling us what you think that proton
belongs to?
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anoopai
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Solvent is CD3OD
[Edited on 12-5-2013 by anoopai]
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anoopai
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kindly someone giveme some clues
thank you
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anoopai
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I am attaching ESI-MS spectra, with UV
Attachment: ESI-MS.pdf (770kB)
This file has been downloaded 505 times
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GreenD
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So you just scraped something off the bottom of your lab bench and put it in an NMR tube?
How did you get this compound? Synthesize? Extract?
Without context I wouldn't even open an NMR file. It would be futile, especially if you have more than 10 protons.
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anoopai
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Got from extract
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GreenD
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extract of what... seriously, help us out
how did you extract it?
This is ridiculous if you think we can tell you what something is if you don't tell us where you got it from, how you got it, and what you were
attempting to get.
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anoopai
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I got it from Tinospora leaf extract, i was just isolating the compound and want to study it, not any target,
[Edited on 25-5-2013 by anoopai]
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anoopai
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so ....
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