December 22, 2024, 08:03:22 AM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: butanol  (Read 3291 times)

0 Members and 1 Guest are viewing this topic.

Offline kriggy

  • Chemist
  • Sr. Member
  • *
  • Posts: 1520
  • Mole Snacks: +136/-16
butanol
« on: January 06, 2014, 10:39:57 AM »
Hi guys,
maybe bit stupid question but:
"How many peaks are in NMR spectra of butanol"
CCCCo
I think its 4, 1 for CH3 group, 1 for OH, 1 for the CH2 to which OH bonds and 1 peak for the 2 CH2 groups in the middle.
If we dont count isomers or they didnt mean C NMR.
Am I right?
Thanks
Logged

Offline discodermolide

  • Chemist
  • Sr. Member
  • *
  • Posts: 5038
  • Mole Snacks: +405/-70
  • Gender: Male
    • My research history
Re: butanol
« Reply #1 on: January 06, 2014, 10:53:38 AM »
Are the two CH2 groups in the middle really equivalent?
One is beta to the OH, the other gamma.

Logged
Development Chemists do it on Scale, Research Chemists just do it!
My Research History

Offline kriggy

  • Chemist
  • Sr. Member
  • *
  • Posts: 1520
  • Mole Snacks: +136/-16
Re: butanol
« Reply #2 on: January 07, 2014, 08:12:37 AM »
Right they are not.
So there are 5 peaks?
I heard somewhere that OH groups are diffucult to see in NMR because of the quick exchange of protons or something like that.. Im not realy sure about interpretng nmr spectra...
Thanks for help
Logged

Offline discodermolide

  • Chemist
  • Sr. Member
  • *
  • Posts: 5038
  • Mole Snacks: +405/-70
  • Gender: Male
    • My research history
Re: butanol
« Reply #3 on: January 07, 2014, 08:25:50 AM »
Usually you can see OH peaks as broad signals. Depending upon the solvent and it's water content they may not be visible.
Logged
Development Chemists do it on Scale, Research Chemists just do it!
My Research History
Pages: [1]   Go Up
« previous next »
Sponsored Links