[che-mistry]

Hello,

How to solve NOESY spectrum and How to assign the coupling constants (for example dddd).

looking forward to more info ....Thanks

[Dan]

Your question is too broad for an internet forum. Get a book about organic spectroscopy from your library, some general organic texts even have a chapter on this - it is too much material to be reproduced here. Have a read and then come back with more specific questions.

NB: Forum Rules

Examples of books:

http://www.amazon.co.uk/Organic-Spectroscopy-William-Kemp/dp/033351954X
http://www.amazon.co.uk/Introduction-Organic-Spectroscopy-Chemistry-Primers/dp/0198557558
http://www.amazon.co.uk/Understanding-NMR-Spectroscopy-James-Keeler/dp/0470017872

You can probably also find decent NMR tutorials on the web with a bit of googling. Possibly useful search terms might be "NMR splitting patterns", "2D NMR correlation experiments", "nuclear Overhauser effect" etc., but I would recommend getting a textbook that will start you off with the basics (like splitting patterns) and logically guide you to more complicated areas (like 2D NMR and NOE).

[che-mistry]

Thank you very much

Your question is too broad for an internet forum. Get a book about organic spectroscopy from your library, some general organic texts even have a chapter on this - it is too much material to be reproduced here. Have a read and then come back with more specific questions.

NB: Forum Rules

Examples of books:

http://www.amazon.co.uk/Organic-Spectroscopy-William-Kemp/dp/033351954X
http://www.amazon.co.uk/Introduction-Organic-Spectroscopy-Chemistry-Primers/dp/0198557558
http://www.amazon.co.uk/Understanding-NMR-Spectroscopy-James-Keeler/dp/0470017872

You can probably also find decent NMR tutorials on the web with a bit of googling. Possibly useful search terms might be "NMR splitting patterns", "2D NMR correlation experiments", "nuclear Overhauser effect" etc., but I would recommend getting a textbook that will start you off with the basics (like splitting patterns) and logically guide you to more complicated areas (like 2D NMR and NOE).