RE: ORGLIST: IR Problem

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From: Chris Borella (cborella$##$ic.sunysb.edu)
Date: Tue Feb 27 2001 - 10:25:01 EST

This sounds like a homework problem to me and I advise you to do it
yourself. If not take a proton and carbon spectra and that should give you
your answer very quickly.

-chris
----------------------------------
Christopher P. Borella
Graduate Research Assistant
State University of NY at Stony Brook
Stony Brook, NY 11794-3400
Telephone: (631)632-7824
FAX: (631)632-7942
e-mail: cborella$##$ic.sunysb.edu
------------------------------------

  -----Original Message-----
  From: owner-orglist$##$dq.fct.unl.pt [mailto:owner-orglist$##$dq.fct.unl.pt]On
Behalf Of Ashutosh
  Sent: Tuesday, February 27, 2001 4:08 AM
  To: Multiple recipients of list orglist
  Subject: ORGLIST: IR Problem


  Hello
  there's a problem in IR spectroscopy i am finding confusing

  a compound shows IR bands at 1620, 990 and 910 reciprocal cm.
  its molecular formula is C3H6O
  find its structure

  now,
  the band at 1620 refers to alkene C=C
  the bands at 990 and 910 refer to monosubstituted ethylene.
  my problem is;where does the oxygen fit in?there is no C=O.so the closest
bet is an ether.
  but ethers show C-O stretching frequency at 1000-1300 reciprocal cm.
  so what could be the structure?

  thanks
  Ashutosh


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