NMR NOESY spectrum - Please help trans-9-(2-phenylethenyl) anthracene

  • Thread starter Thread starter vdeity
  • Start date Start date
  • Tags Tags
    Nmr Spectrum
AI Thread Summary
The discussion focuses on analyzing the NOESY spectrum for trans-9-(2-phenylethenyl) anthracene, with the user seeking assistance in labeling hydrogen interactions. The clustered peaks in the benzene region complicate the identification of specific hydrogens. There are questions regarding the correct labeling of resonances, particularly at 1.4 ppm and 1.6 ppm, and the typical chemical shifts for vinyl groups. Additionally, the user inquires about the internal standard used for the spectrum. Clarification on these points is essential for accurate interpretation of the NMR data.
vdeity
Messages
6
Reaction score
0
NMR NOESY spectrum -- Please help! "trans-9-(2-phenylethenyl) anthracene"

Here is the NOESY spectrum:
http://img109.imageshack.us/img109/5708/wittiggosy.jpg

Here is the Proton NMR and the structure of the molecule:
http://img40.imageshack.us/img40/1774/wittigprotont.jpg )
trans-9-(2-phenylethenyl) anthracene

I need to label this NOESY and see which hydrogens are interacting with each other.
But with so many peaks all clustered together at the benzene area ... I can't tell them apart!

Also, I may have numbered my carbons wrong.

Please help me out!
 
Last edited by a moderator:
Physics news on Phys.org


FYI
Here is my attempt...
I'm sure it's incorrect :)
http://img32.imageshack.us/img32/5633/noesy.jpg
 
Last edited by a moderator:


Did you obtain this spectrum yourself? Why would you label the two resonances at 1.4ppm and 1.6ppm as your two vinyl groups? Where do vinyl groups usually show up?

What did you use as an internal standard?
 

Thread 'Prove that evolution is constant (Provide at least two arguments to support your position)'

I don't get how to argue it. i can prove: evolution is the ability to adapt, whether it's progression or regression from some point of view, so if evolution is not constant then animal generations couldn`t stay alive for a big amount of time because when climate is changing this generations die. but they dont. so evolution is constant. but its not an argument, right? how to fing arguments when i only prove it.. analytically, i guess it called that (this is indirectly related to biology, im...
View full post »

Similar threads

What are the key steps to analyzing an NMR spectrum?
Replies
1
Views
4K
Help me identify peaks in H NMR please
Replies
1
Views
20K
Chemistry H NMR Spectrum - Molecular Structure
Replies
1
Views
12K
I Some questions about Cosmic Microwave Background radiation
Replies
13
Views
6K
I Some questions about Cosmic Inflation
Replies
4
Views
4K
Mathematica This Week's Finds in Mathematical Physics (Week 258)
Replies
4
Views
10K
Mathematica This Week's Finds in Mathematical Physics (Week 231)
Replies
5
Views
3K
Talbot Lau interferometry of carbon-70 fullerenes
Replies
1
Views
5K
Mathematica This Week's Finds in Mathematical Physics (Week 231)
Replies
5
Views
3K
Mathematica This Week's Finds in Mathematical Physics (Week 259)
Replies
1
Views
3K

Hot Threads

Recent Insights

Back
Top