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Internet Message Format  |  1992-12-29  |  1.3 KB
  1. Path: sparky!uunet!gatech!darwin.sura.net!zaphod.mps.ohio-state.edu!saimiri.primate.wisc.edu!crdgw1!rdsunx.crd.ge.com!maxwell!ebstokes
  2. From: ebstokes@maxwell.crd.ge.com (Ed Stokes)
  3. Newsgroups: sci.chem
  4. Subject: phthalimide luminescence
  5. Message-ID: <1992Dec29.224237.10631@crd.ge.com>
  6. Date: 29 Dec 92 22:42:37 GMT
  7. Sender: usenet@crd.ge.com (Required for NNTP)
  8. Organization: GE Corp. Research & Development, Schenectady, NY
  9. Lines: 28
  10. Nntp-Posting-Host: maxwell.crd.ge.com
  11.  
  12. We are investigating the optical properties of derivatives of
  13. phthalimide:
  14.  
  15.                          R
  16.                          |
  17.                          CH2
  18.                          |
  19.                          N
  20.                         / \
  21.                      O=C   C=O
  22.                        |  /
  23.                        C=C
  24.                       /   \
  25.                      C     C
  26.                       \\ //
  27.                        C-C
  28.  
  29. where R in this case is a halogenated biphenyl. In published
  30. data tables (CRC Atlas of Spect. Data and Phys. Const. for
  31. Org. Comp., #p1391), phalimide shows no uv absorption
  32. above 291nm. However, we have observed a luminescence
  33. with excitation/emission maxima at 350/410 nm.
  34.  
  35. Is anyone aware of previous luminescence work done with
  36. phalimide and its derivatives ?
  37.  
  38. Ed Stokes
  39. ebstokes@crd.ge.com
  40.